Verovatnoca I Statistika - Teorija

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  • 1/210 Questions

    Prvi problemi iz teorije verovatnoce su vezani za:

    • Kockarske probleme
    • Statisticke probleme
    • Trgovacke probleme
    • Naucne probleme
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Verovatnoca I Statistika - Teorija - Quiz

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  • 2. 

    Verovatnoca da prilikom bacanja 3 novcica dobijemo 3 puta glavu je:

    • 0.5

    • 0.125

    • 0.225

    • 0.25

    Correct Answer
    A. 0.125
    Explanation
    The probability of getting three heads when flipping three coins is 0.125. This can be calculated by multiplying the probability of getting a head on one coin flip (0.5) by itself three times, since each coin flip is an independent event. Therefore, 0.5 * 0.5 * 0.5 = 0.125.

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  • 3. 

    Oznaka Ω koristi se za oznacavanje:

    • Bilo kog dogadjaja

    • Skupa (prostora) elementarnih dogadjaja

    • Ne koristi se u verovatnoci

    • Nemoguceg dogadjaja

    Correct Answer
    A. Skupa (prostora) elementarnih dogadjaja
    Explanation
    The symbol Ω is used to denote the sample space, which is the set of all possible outcomes or elementary events in a probability experiment. It represents the entire set of outcomes that could occur in a given situation. Therefore, the correct answer is "Skupa (prostora) elementarnih dogadjaja" which translates to "Set (space) of elementary events."

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  • 4. 

    Dogadjaji A, B i C su nezavisni i verovatnoce im iznose 1/2, 1/3 i 1/3. Koliko iznosi verovatnoca dogadjaja ABC?

    • 1/9

    • 1/18

    • 1

    • 2/3

    Correct Answer
    A. 1/18
    Explanation
    The probability of event A, B, and C occurring independently can be calculated by multiplying their individual probabilities. Thus, the probability of event ABC occurring is (1/2) * (1/3) * (1/3) = 1/18.

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  • 5. 
    U izrazu sa slike, za nivo poverenja β obicno se uzima: - ProProfs

    U izrazu sa slike, za nivo poverenja β obicno se uzima:

    • 0.99 , 0.95 , 0.90

    • Proizvoljne vrednosti

    • Uvek 0.95

    • 0.05 , 0.01...

    Correct Answer
    A. 0.99 , 0.95 , 0.90
    Explanation
    The correct answer is 0.99, 0.95, 0.90. These values are commonly used for the confidence level β in statistical analysis. A confidence level represents the probability that a statistical result will be within a certain range. The values 0.99, 0.95, and 0.90 are often chosen as they provide a high level of confidence in the results while still allowing for some margin of error. Other values may be used depending on the specific requirements of the analysis, but these three values are widely accepted and commonly used.

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  • 6. 

    Statisticke hipoteze se podvrgavaju:

    • Proveravanju

    • Ne proveravaju se

    • Testiranju

    • Ne testiraju se

    Correct Answer(s)
    A. Proveravanju
    A. Testiranju
    Explanation
    Statističke hipoteze se podvrgavaju proveravanju i testiranju. Proveravanje statističke hipoteze uključuje analizu podataka i statističkih metoda kako bi se utvrdilo da li rezultati podržavaju ili ne podržavaju hipotezu. Testiranje statističke hipoteze podrazumeva upotrebu određenih statističkih testova kako bi se izvršila kvantitativna procena verovatnoće da se dobijeni rezultati mogu objasniti slučajnošću ili da su stvarno posledica neke uzročno-posledične veze.

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  • 7. 

    Verovatnoca je preslikavanje:

    • Realnih brojeva u skup slucajnih dogadjaja

    • Slucajnih dogadjaja su skup svih realnih brojeva

    • Slucajnih dogadjaja u interval (0,1)

    • Slucajnih dogadjaja u interval [0,1]

    Correct Answer
    A. Slucajnih dogadjaja u interval [0,1]
    Explanation
    The correct answer is "Slucajnih dogadjaja u interval [0,1]". This is because probability is a mapping of random events to the interval [0,1]. The probability of an event can range from 0 (impossible event) to 1 (certain event). Therefore, the correct answer is the option that mentions random events in the interval [0,1].

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  • 8. 

    Ako je dogadjaj A da je sijalica proizvedena u prvoj fabrici, a dogadjaj B da je dobra, sta znaci dogadjaj ABc?

    • Sijalica je proizvedena u drugoj fabrici i dobra je

    • Sijalica je proizvedena u drugoj fabrici ili dobra je

    • Sijalica je proizvedena u prvoj fabrici i nije dobra 

    • Sijalica je proizvedena u drugoj fabrici ili jedobra 

    Correct Answer
    A. Sijalica je proizvedena u prvoj fabrici i nije dobra 
    Explanation
    The correct answer is "Sijalica je proizvedena u prvoj fabrici i nije dobra". This means that the event ABc represents the situation where the light bulb is produced in the first factory and is not good.

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  • 9. 

    Skup svih ishoda dogadjaja " Bacanje 3 novcica " ima:

    • 2 elementa

    • 6 elemenata

    • 36 elemenata

    • 8 elemenata

    Correct Answer
    A. 8 elemenata
    Explanation
    The correct answer is 8 elements because when you toss 3 coins, each coin can have 2 possible outcomes (heads or tails). Since there are 3 coins, the total number of possible outcomes is 2 * 2 * 2 = 8.

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  • 10. 

    Dogadjaji A i B su nezavnisni ako je:

    • P(A/B) = P(A)

    • P(B/A) = P(B)

    • P(A/B) > P(A)

    • P(A/B) < P(A)

    Correct Answer(s)
    A. P(A/B) = P(A)
    A. P(B/A) = P(B)
    Explanation
    The given answer states that events A and B are independent if the conditional probability of A given B is equal to the probability of A, and the conditional probability of B given A is equal to the probability of B. This means that the occurrence of event B does not affect the probability of event A, and vice versa. In other words, the probabilities of events A and B are not dependent on each other.

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  • 11. 

    Skup ( 2, 2, 5, 7, 9, 9, 9, 10, 10, 13, 15 ) ima modus:

    • 9

    • 10

    • 7.45

    • Nema

    Correct Answer
    A. 9
    Explanation
    The given set of numbers has a mode, which is the value that appears most frequently in the set. In this case, the number 9 appears three times, which is more than any other number in the set. Therefore, the mode of the given set is 9.

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  • 12. 

    Idealan test ima:

    • Male greske prvog i velike greske drugog reda

    • Male greske i prvog i drugog reda

    • Velike greske i prvog i drugog reda

    • Velike greske prvog i male greske drugog reda

    Correct Answer
    A. Male greske i prvog i drugog reda
    Explanation
    An ideal test should have small errors of both the first and second order. This means that the test should have a low rate of false positives (first-order errors) and false negatives (second-order errors). In other words, it should accurately identify both the presence and absence of a condition being tested. This ensures that the test is reliable and provides accurate results.

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  • 13. 

    Aksiomatiku verovatnoce definisao je:

    • Gaus

    • Ferma

    • Laplas

    • Kolmogorov

    Correct Answer
    A. Kolmogorov
    Explanation
    The correct answer is Kolmogorov. Kolmogorov is known for his work in probability theory, where he defined the axioms of probability. His work laid the foundations for modern probability theory and provided a rigorous mathematical framework for studying uncertainty and randomness.

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  • 14. 

    Suprotan dogadjaj dogadjaju "Pojava 2 glave pri bacanju 2 dinara " je:

    • 2 pisma

    • Bar 1 pismo

    • Bar 1 glava

    • 1 pismo

    Correct Answer
    A. Bar 1 pismo
    Explanation
    The explanation for the given correct answer "Bar 1 pismo" is that the event "Pojava 2 glave pri bacanju 2 dinara" refers to the occurrence of getting 2 heads when tossing 2 coins. The phrase "Bar 1 pismo" means "at least 1 tails" in Serbian. So, the answer "Bar 1 pismo" implies that there is at least 1 tails when tossing the 2 coins, which is the opposite of the given event.

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  • 15. 

    Za centriranu tackastu ocenu matematickog ocekivanja populacije uzima se:

    • Varijansa uzorka

    • Disperzija uzorka

    • Standardno odstupanje uzorka

    • Aritmeticka sredina uzorka

    Correct Answer
    A. Aritmeticka sredina uzorka
    Explanation
    The correct answer is "Aritmeticka sredina uzorka" (Mean of the sample). When calculating the mathematical expectation of a population, the mean of the sample is used. The mean is calculated by summing all the values in the sample and dividing by the number of values. It represents the average value of the sample and is a commonly used measure of central tendency. Variance, dispersion, and standard deviation are measures of variability, not the mathematical expectation.

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  • 16. 

    Prilikom testiranja hipoteza pojavljuju se greske, mogu da budu:

    • Prvog reda

    • Drugog reda

    • Treceg reda

    • Cetvrtog reda

    Correct Answer(s)
    A. Prvog reda
    A. Drugog reda
    Explanation
    During hypothesis testing, errors can occur. The first-order error, also known as a Type I error, refers to rejecting a true null hypothesis. The second-order error, or Type II error, occurs when a false null hypothesis is not rejected. These two types of errors are commonly encountered in hypothesis testing.

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  • 17. 

    Verifikacija statisticke hipoteze je:

    • Proveravanje

    • Ne proveravanje

    • Testiranje

    • Ne testiranje

    Correct Answer
    A. Testiranje
    Explanation
    The correct answer is "Testiranje" which translates to "Testing" in English. This suggests that the verification of a statistical hypothesis involves conducting tests to determine the validity or accuracy of the hypothesis.

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  • 18. 

    Skup svih ishoda nekog dogadjaja je:

    • Proizvoljan dogadjaj

    • Siguran dogadjaj

    • Nemoguc dogadjaj

    • Verovatnoca mu je 1

    Correct Answer(s)
    A. Siguran dogadjaj
    A. Verovatnoca mu je 1
    Explanation
    The correct answer is "Siguran dogadjaj, Verovatnoca mu je 1". A siguran dogadjaj refers to an event that is certain to occur. In this case, the skup svih ishoda (set of all outcomes) of some event is being described as a siguran dogadjaj with a probability of 1. This means that every outcome in the set is guaranteed to happen, and there is no possibility of any other outcome occurring.

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  • 19. 

    Skup svih ishoda dogadjaja " Bacanje 2 kocke " ima:

    • 2 elementa

    • 6 elemenata

    • 36 elemenata

    • 8 elemenata

    Correct Answer
    A. 36 elemenata
    Explanation
    The correct answer is 36 elements because when two dice are thrown, each dice has six possible outcomes (numbers 1 to 6). Therefore, the total number of outcomes when throwing two dice is 6 multiplied by 6, which equals 36.

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  • 20. 

    Ako su P(A) i P(B) verovatnoce dva nezavisna dogadjaja A i B, onda verovatnoca da se nece realizovati oba dogadjaja:

    • P(A) * P(B)

    • (1-P(A)) * (1-P(B))

    • P(A) * (1-P(B))

    • (1-P(A)) * P(B)

    Correct Answer
    A. (1-P(A)) * (1-P(B))
    Explanation
    The given correct answer (1-P(A)) * (1-P(B)) represents the probability that both events A and B will not occur. This can be derived from the fact that the probability of an event not occurring is equal to 1 minus the probability of it occurring. Since A and B are independent events, the probability of both not occurring can be calculated by multiplying the probabilities of each event not occurring, which gives (1-P(A)) * (1-P(B)).

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  • 21. 

    Ako je dogadjaj A da je sijalica proizvedena u prvoj fabrici, a dogadjaj B da je dobra, sta znaci dogadjaj A+B?

    • Sijalica je proizvedena u drugoj fabrici i dobra je

    • Sijalica je proizvedena u drugoj fabrici ili je dobra

    • Sijalica je proizvedena u prvoj fabrici i dobra je

    • Sijalica je proizvedena u prvoj fabrici ili je dobra

    Correct Answer
    A. Sijalica je proizvedena u prvoj fabrici ili je dobra
    Explanation
    The event A represents the light bulb being produced in the first factory, and event B represents the light bulb being good. The event A+B means that either the light bulb was produced in the first factory or it is good.

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  • 22. 

    Ocena je najefikasnija ako ima:

    • Najvecu varijansu

    • Najmanju varijansu

    • Najvece standardno odstupanje

    • Najmanje standardno odstupanje

    Correct Answer
    A. Najmanju varijansu
    Explanation
    The correct answer is "Najmanju varijansu" (the smallest variance). Variance measures the spread or dispersion of data points around the mean. A smaller variance indicates that the data points are closer to the mean, which means there is less variability or deviation from the average. Therefore, having the smallest variance would make the evaluation more efficient as it implies a more consistent and reliable measurement.

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  • 23. 

    Ako se dogadjaji A i B iskljucuju (disjunktni su) i P(A) = 0.3, P(B) = 0.5 onda je P(A+B)?

    • 0.15

    • 0.8

    • 0.5

    • 1

    Correct Answer
    A. 0.8
    Explanation
    If events A and B are mutually exclusive (disjoint) and the probability of event A is 0.3 and the probability of event B is 0.5, then the probability of either event A or event B occurring (P(A+B)) is equal to the sum of their individual probabilities. Therefore, P(A+B) = P(A) + P(B) = 0.3 + 0.5 = 0.8.

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  • 24. 

    Kod funkcija raspodele:

    • Domen je R

    • Domen je [0,1]

    • Kodomen je R

    • Kodomen je [0,1]

    Correct Answer(s)
    A. Domen je R
    A. Kodomen je [0,1]
    Explanation
    The given answer states that the domain of the function is the set of real numbers (R) and the codomain is the interval [0,1]. This means that the function can take any real number as input and will produce an output that lies within the interval [0,1]. The answer provides clear information about the range of possible inputs and outputs for the function.

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  • 25. 

    Pouzdanost sistema:

    • Je verovatnoca da sistem radi

    • Zavisi od pouzdanosti svih komponenti

    • Ne zavisi od pouzdanosti komponenti

    • Zavisi od pouzdanosti samo osnovnih komponenti

    Correct Answer(s)
    A. Je verovatnoca da sistem radi
    A. Zavisi od pouzdanosti svih komponenti
    Explanation
    The correct answer is "je verovatnoca da sistem radi, zavisi od pouzdanosti svih komponenti". This answer states that the reliability of the system is the probability that the system functions properly and it depends on the reliability of all components. This means that if any component in the system is not reliable, it can affect the overall reliability of the system. Therefore, the reliability of the system is dependent on the reliability of all components working together.

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  • 26. 

    Uobicajeno je da se parametri popluacije obelezavaju:

    • Grckim slovima

    • Latinicnim slovima

    • Cirilicnim slovima

    • Nema pravila

    Correct Answer
    A. Nema pravila
    Explanation
    The correct answer is "Nema pravila" which translates to "There are no rules" in English. This suggests that there is no standard or specific way to denote population parameters. It implies that population parameters can be represented using any type of letters or symbols, and there is no prescribed or universally accepted convention for it.

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  • 27. 

    Statisticka hipoteza moze da bude:

    • Tacna

    • Netacna

    • Istovremeno i tacna i netacna

    • Nema istinitosnu vrednost

    Correct Answer(s)
    A. Tacna
    A. Netacna
    Explanation
    The correct answer is that a statistical hypothesis can be both true and false. This is because a statistical hypothesis is a statement or assumption about a population parameter, and it can either be supported or rejected based on the evidence from a sample. In other words, a hypothesis can be initially assumed to be true, but further analysis may reveal that it is actually false. Therefore, a statistical hypothesis can have both a true and false value depending on the evidence and analysis conducted.

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  • 28. 

    Hipoteza H0 se naziva:

    • Nulta

    • Suprotna 

    • Alternativna

    • Polazna

    Correct Answer(s)
    A. Nulta
    A. Polazna
    Explanation
    The correct answer is "Nulta, Polazna." In hypothesis testing, the null hypothesis (H0) is a statement that assumes there is no significant difference or relationship between variables. It is often considered as the starting point or baseline assumption before conducting statistical analysis. Therefore, "Nulta" and "Polazna" are both appropriate terms to describe the null hypothesis.

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  • 29. 

    Testiranje hipoteze podrazumeva postavljanje:

    • Dve hipoteze, nultu i alternativnu

    • Jednu hipotezu, suprotnu

    • Jednu hipotezu, nultu

    • Vise raznih hipoteza

    Correct Answer
    A. Dve hipoteze, nultu i alternativnu
    Explanation
    Testiranje hipoteze podrazumeva postavljanje dve hipoteze, nultu i alternativnu. Nulta hipoteza je obično tvrdnja koja se smatra tačnom ili trenutno prihvaćenom, dok je alternativna hipoteza tvrdnja koja se testira da bi se utvrdilo da li postoji dovoljno dokaza da se odbaci nulta hipoteza. Postavljanje obe hipoteze omogućava istraživačima da izvrše statističku analizu i donesu zaključke na osnovu prikupljenih podataka.

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  • 30. 

    Ako se dogadjaji A, B i C medjusobno ne iskljucuju onda je verovatnoca zbira dogadjaja:

    • P(A+B+C) = P(A) + P(B) + P(C) + P(ABC)

    • P(A+B) = P(A) + P(B) + P(C) 

    • P(A+B+C) = P(A) + P(B) + P(C) - P(AB) - P(AC) - P(BC) + P(ABC)

    • P(A+B) = P(A) + P(B) - P(AB) - P(AC) - P(BC)

    Correct Answer
    A. P(A+B+C) = P(A) + P(B) + P(C) - P(AB) - P(AC) - P(BC) + P(ABC)
    Explanation
    The given answer is the formula for calculating the probability of the union of three events (A, B, and C) that do not mutually exclude each other. It states that the probability of the union of A, B, and C is equal to the sum of the individual probabilities of A, B, and C, minus the probabilities of the intersections between them (AB, AC, BC), and finally adding back the probability of the intersection of all three events (ABC). This formula accounts for the overlapping probabilities between the events, ensuring that they are not double-counted.

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  • 31. 

    Veza izmedju funkcija gustine i funkcije raspodele za neprekidnu slucajnu promenljivu je:

    • Iste su

    • Izvod gustine je raspodela

    • Izvod raspodele je gustina

    • Integral gustine je raspodela

    Correct Answer(s)
    A. Izvod raspodele je gustina
    A. Integral gustine je raspodela
    Explanation
    The correct answer is "Izvod raspodele je gustina, Integral gustine je raspodela." This is because the derivative of the cumulative distribution function gives the probability density function, which is the derivative of the distribution function. Similarly, the integral of the probability density function gives the cumulative distribution function.

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  • 32. 
    Ovaj izraz izracunava: - ProProfs

    Ovaj izraz izracunava:

    • Matematicko ocekivanje

    • Aritmeticku sredinu uzorka

    • Varijansu uzorka

    • Disperziju uzorka

    Correct Answer
    A. Aritmeticku sredinu uzorka
    Explanation
    This expression calculates the arithmetic mean of a sample.

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  • 33. 

    Uobicajeno je da se statistike - parametri uzorka obelezavaju:

    • Grckim slovima

    • Latinicnim slovima

    • Cirilicnim slovima

    • Nema pravila

    Correct Answer
    A. Nema pravila
    Explanation
    There is no specific rule for labeling the statistics parameters in terms of alphabets. The choice of using Greek, Latin, or Cyrillic letters to represent the parameters of a sample is arbitrary and depends on the preference of the researcher or the field of study. Therefore, there is no standard convention or rule that dictates the use of a particular alphabet for labeling statistics parameters.

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  • 34. 

    Sta je najpreciznije reci:

    • Prihvatamo hipotezu

    • Ne mozemo da odbacimo hipotezu

    • Odbacujemo hipotezu

    • Ne moze da prihvatimo hipotezu

    Correct Answer(s)
    A. Prihvatamo hipotezu
    A. Odbacujemo hipotezu
    Explanation
    The correct answer is "Prihvatamo hipotezu, Odbacujemo hipotezu." This answer is correct because it includes both possibilities - accepting the hypothesis and rejecting the hypothesis. The other options only mention one possibility, either accepting or rejecting the hypothesis, but not both.

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  • 35. 

    Suprotan dogadjaj dogadjaju A:

    • Se realizuje kada se dogadjaj A ne realizuje

    • Se realizuje istovremeno kada i dogadjaj A

    • Iznosi 1-P(A)

    • Iznosi 1+P(A)

    Correct Answer(s)
    A. Se realizuje kada se dogadjaj A ne realizuje
    A. Iznosi 1-P(A)
    Explanation
    The correct answer is "Se realizuje kada se dogadjaj A ne realizuje" and "Iznosi 1-P(A)". This means that the complementary event of event A occurs when event A does not occur. The probability of the complementary event is equal to 1 minus the probability of event A.

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  • 36. 

    Skup svih povoljnih realizacija dogadjaja " Vadjenje 2 crvene kuglice iz kese u kojoj se nalaze 5 crvenih i 4 zelene kuglice " je:

    • 5

    • 10

    • 20

    • 2

    Correct Answer
    A. 10
    Explanation
    The question is asking for the number of favorable outcomes in the event of drawing 2 red balls from a bag containing 5 red balls and 4 green balls. To find the number of favorable outcomes, we need to calculate the number of ways to choose 2 red balls from the 5 available. This can be done using the combination formula, which is given by nCr = n! / (r!(n-r)!). In this case, n = 5 (number of red balls) and r = 2 (number of balls to be chosen). Plugging in the values, we get 5C2 = 5! / (2!(5-2)!) = 5! / (2!3!) = (5*4*3!) / (2!3!) = (5*4) / (2*1) = 10. Therefore, the answer is 10.

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  • 37. 

    Ako je slucajna promenljiva X ishod bacanja kocke, tada F(X) = P(X<4) je:

    • 4/6

    • 1/2

    • 0

    • 1/6

    Correct Answer
    A. 1/2
    Explanation
    The function F(X) = P(X

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  • 38. 

    Normalna raspodela se zove i:

    • Poasonova raspodela

    • Binomna raspodela

    • Gausova  raspodela

    • Bernulijeva raspodlea

    Correct Answer
    A. Gausova  raspodela
    Explanation
    The correct answer is "Gausova raspodela" because the question is asking for another name for the normal distribution. The normal distribution is also known as the Gaussian distribution, named after the mathematician Carl Friedrich Gauss.

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  • 39. 

    Aksime teorije verovatnoce su:

    • Verovatnoca sigurnog dogadjaja jednaka je 1

    • Verovatnoca je broj veci od 1

    • Verovatnoca je broj manji od 0

    • Verovatnoca je broj u intervalu od 0 do 1

    Correct Answer(s)
    A. Verovatnoca sigurnog dogadjaja jednaka je 1
    A. Verovatnoca je broj u intervalu od 0 do 1
    Explanation
    The correct answer is "Verovatnoca sigurnog dogadjaja jednaka je 1" and "Verovatnoca je broj u intervalu od 0 do 1". This is because in probability theory, the probability of a certain event occurring is always 1, as it is guaranteed to happen. Additionally, probabilities are always expressed as numbers between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

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  • 40. 

    Siguran dogadjaj:

    • Ima verovatnocu 0

    • Ima verovatnocu 1

    • Je suprotan nemogucem dogadjaju

    • Je suprotan bilo kom dogadjaju

    Correct Answer
    A. Ima verovatnocu 1
    Explanation
    The correct answer is "Ima verovatnocu 1" which means "It has a probability of 1". This implies that the event is certain to happen, meaning it is guaranteed to occur.

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  • 41. 

    Ako su P(A) i P(B) verovatnoce dva nezavisna dogadjaja A i B, onda je verovatnoca da ce se realizovati oba dogadjaja:

    • P(A) * P(B)

    • (1-P(A)) * (1-P(B))

    • P(A) * (1-P(B))

    • (1-P(A)) * P(B)

    Correct Answer
    A. P(A) * P(B)
    Explanation
    The given correct answer, P(A) * P(B), is the formula for calculating the probability of two independent events A and B both occurring. This formula is derived from the multiplication rule of probability, which states that the probability of two independent events occurring together is equal to the product of their individual probabilities. Therefore, if P(A) and P(B) are the probabilities of events A and B occurring independently, then the probability of both events occurring is the product of these probabilities, P(A) * P(B).

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  • 42. 

    Ako su P(A) i P(B) verovatnoce dva nezavisna dogadjaja A i B, onda je verovatnoca da se nece ralizovati dogadjaj A, hoce dogadjaj B:

    • P(A) * P(B)

    • (1-P(A)) * (1-P(B))

    • P(A) * (1-P(B))

    • (1-P(A)) * P(B)

    Correct Answer
    A. (1-P(A)) * P(B)
    Explanation
    The given answer, (1-P(A)) * P(B), is the correct explanation. It represents the probability that event A will not occur (1-P(A)), multiplied by the probability that event B will occur (P(B)). This is based on the assumption that events A and B are independent of each other.

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  • 43. 
    Ovaj izraz predstavlja verovatnocu slucajne promenljive koja ima: - ProProfs

    Ovaj izraz predstavlja verovatnocu slucajne promenljive koja ima:

    • Poasonovu raspodelu

    • Binomnu raspodelu

    • Bernulijevu raspodelu

    • Laplasovu raspodelu

    Correct Answer
    A. Poasonovu raspodelu
    Explanation
    This expression represents the probability of a random variable that follows a Poisson distribution. The Poisson distribution is commonly used to model the number of events occurring in a fixed interval of time or space, given that these events occur with a constant rate and are independent of the time since the last event.

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  • 44. 

    Poasonova raspodela odnosi se na verovatnoce slucajnih promenljivih u:

    • Jedinici vremena

    • Jedinici prostora

    • Ne odnose se na jedinice vremena

    • Ne odnose se na jedinice prostora

    Correct Answer(s)
    A. Jedinici vremena
    A. Jedinici prostora
    Explanation
    The correct answer is Jedinici vremena, Jedinici prostora. The Poisson distribution refers to the probabilities of random variables occurring in units of time or units of space. It is commonly used to model the number of events that occur within a fixed interval of time or space, such as the number of phone calls received in an hour or the number of cars passing through a particular intersection in a day. Therefore, the Poisson distribution is applicable to both units of time and units of space.

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  • 45. 

    Skup ( 1, 3, 4, 4, 5, 6, 8, 8, 10 ) :

    • Ima modus 4

    • Ima dva modusa

    • Ima modus 7.45

    • Nema modus

    Correct Answer
    A. Ima dva modusa
    Explanation
    The given set of numbers (1, 3, 4, 4, 5, 6, 8, 8, 10) has two modes. A mode is the value that appears most frequently in a set of numbers. In this case, the numbers 4 and 8 both appear twice, which makes them the modes of the set. Therefore, the correct answer is "Ima dva modusa" which means "It has two modes" in English.

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  • 46. 
    Ako je uslov sa slike ispunjen, onda je tackasta ocena: - ProProfs

    Ako je uslov sa slike ispunjen, onda je tackasta ocena:

    • Centrirana

    • Nepristrasna

    • Nije centrirana

    • Efikasna

    Correct Answer
    A. Efikasna
    Explanation
    If the condition from the image is fulfilled, then the point grade is efficient.

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  • 47. 
    Ako je uslov sa slike ispunjen, onda je tackasta ocena: - ProProfs

    Ako je uslov sa slike ispunjen, onda je tackasta ocena:

    • Centrirana

    • Nepristrasna

    • Nije centrirana

    • Efikasna

    Correct Answer
    A. Efikasna
    Explanation
    If the condition from the image is met, then the dot rating is efficient.

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  • 48. 

    Resavanje problema pojave gresaka resava se:

    • Smanjivanjem populacije

    • Povecavanjem populacije

    • Smanjivanjem uzorka

    • Povecavanjem uzorka

    Correct Answer
    A. Povecavanjem uzorka
    Explanation
    Increasing the sample size helps in solving the problem of error occurrence. By increasing the sample size, we can obtain a more representative and reliable estimate of the population parameters. With a larger sample, the variability and random errors are reduced, leading to more accurate and precise results. Therefore, increasing the sample size is a valid approach to minimize errors and improve the quality of the analysis.

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  • 49. 

    Suprotan dogadjaj dogadjaju " Ne vise od 2 pogotka u 5 gadjanja " je

    • Manje od 2 pogotka

    • Vise od 2 pogotka

    • 3 pogotka

    • 3 promasaja

    Correct Answer
    A. Vise od 2 pogotka
    Explanation
    The correct answer is "Vise od 2 pogotka" (More than 2 hits). This means that the event "Ne vise od 2 pogotka u 5 gadjanja" (Not more than 2 hits in 5 shots) is referring to the outcome of getting more than 2 hits. Therefore, the correct answer is the one that represents this outcome.

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Quiz Review Timeline (Updated): Jul 22, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

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  • Jul 22, 2024
    Quiz Edited by
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  • Jan 14, 2020
    Quiz Created by
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