15 Questions
| Total Attempts: 2358

Questions and Answers

- 1.A coin is tossed 1000 times and 560 times a ‘head’ occurs. The empirical probability of occurrence of a Head in this case is:
- A.
0.5

- B.
0.56

- C.
0.44

- D.
0.056

- 2.Two coins are tossed 200 times and the following outcomes are recorded: What is the empirical probability of occurrence of at least one Head in the above case?
- A.
0.33

- B.
0.34

- C.
0.66

- D.
0.83

- 3.A die is thrown 200 times and the following outcomes are noted, with their frequencies: What is the empirical probability of getting a 1 in the above case?
- A.
0.28

- B.
0.22

- C.
0.21

- D.
0.15

- 4.A die is thrown 200 times and the following outcomes are noted, with their frequencies: What is the empirical probability of getting a number less than 4?
- A.
0.50

- B.
0.52

- C.
0.54

- D.
0.46

- 5.A die is thrown 200 times and the following outcomes are noted, with their frequencies: What is the empirical probability of getting a number greater than 4?
- A.
0.18

- B.
0.25

- C.
0.32

- D.
0.46

- 6.On a particular day, the number of vehicles passing a crossing is given below: What is the probability of a two wheeler passing the crossing on that day?
- A.
0.26

- B.
0.71

- C.
0.385

- D.
0.615

- 7.The following table shows the blood-groups of 100 students: One student is taken at random. What is the probability that his blood group is B+?
- A.
0.35

- B.
0.20

- C.
0.12

- D.
0.10

- 8.In a bag, there are 100 bulbs out of which 30 are bad ones. A bulb is taken out of the bag at random. The probability of the selected bulb to be good is:
- A.
0.30

- B.
0.50

- C.
0.70

- D.
None of these

- 9.A bag contains 40 red, 30 blue and 30 green balls. A ball is drawn at random. What is the probability the ball drawn is a red ball?
- A.
0.30

- B.
0.40

- C.
0.60

- D.
0.70

- 10.The king, queen and jack of clubs are removed from a deck of 52 playing cards and then the cards are well shuffled. A card is drawn at random from the rest of the cards. What is the probability that the card would be a King of clubs?
- A.
Zero

- B.
0.50

- C.
0.60

- D.
0.80

- 11.An integer is chosen between 0 and 100. What is the probability that it is divisible by 9?
- A.
0.09

- B.
0.10

- C.
0.11

- D.
0.12

- 12.Cards with number 1 to 100 are placed in a box. A card is selected at random. What is the probability that the card is a number divisible by 8?
- A.
0.10

- B.
0.11

- C.
0.09

- D.
0.12

- 13.A letter of English alphabet is chosen at random. What is the probability that the letter is a vowel?
- A.
5/24

- B.
5/26

- C.
5/27

- D.
5/28

- 14.There are 500 sealed envelopes in a box: If the envelopes are well shuffled and then an envelope is picked out randomly, what is the probability that it contains a no cash prize?
- A.
3/5

- B.
2/5

- C.
4/5

- D.
Zero

- 15.A child’s game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 4 are blue and rest red. One piece is lost at random. What s the probability that it is a square of red colour?
- A.
2/9

- B.
2/5

- C.
3/5

- D.
1/3