Statistics Trivia Quiz: Can You Pass This Advanced Placement Exam?
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Are you looking for a statistics trivia quiz to help see if you can pass this advanced placement exam? The quiz below will be perfect for you as it gives you the chance to review what you have learned so far and if it is enough to prepare you for the exam adequately. Do give it a try, and be sure to check out other statistics quizzes just like it!
- 1.Researchers in the Southwest studying tortoise habitat collected the following data. If a tortoise is selected at random, let A = the tortoise is a female, and B = the tortoise is a Morafka. Which answer appropriately interprets the value of P(B|A)? Species Male Female Agassiz 18 33 Morafka 12 15
- A.
31.3% is the probability that a randomly selected Morafka tortoise is a female tortoise.
- B.
31.3% is the probability that a randomly selected female tortoise is a Morafka tortoise.
- C.
19.2% is the probability that a randomly selected Morafka tortoise is a female tortoise.
- D.
19.2% is the probability that a randomly selected female tortoise is a Morafka tortoise.
- E.
31.3% is the probability that a randomly selected tortoise is a female tortoise.
- 2.Which of the following is not an advantage of stratified random sampling over simple random sampling?
- A.
When done correctly, a stratified random sampling process has less variability from sample to sample than a simple random sample.
- B.
When done correctly, a stratified random sample can provide, with a smaller sample size, an estimate that is just as reliable as that of a simple random sample with a larger sample size.
- C.
A stratified random sample provides information about each stratum in the population as well as an estimate for the population as a whole, and a simple random sample does not.
- D.
When done correctly, a stratified random sample is less biased than a simple random sample.
- E.
When done correctly, a stratified random sample can provide a more reliable estimate than a simple random sample using the same sample size.
- 3.The correlation between height in inches and weight in pounds for a particular class is 0.65. If the heights are converted from inches to centimeters, what will the correlation be? (1 in. = 2.54 cm)
- A.
-0.65
- B.
-0.26
- C.
0.10
- D.
0.26
- E.
0.65
- 4.Researchers wish to test how rangelands growth is affected by wildfire. A very large open area is divided into 28 equally sized plots and subjected to a controlled burn. One year later, the researchers calculate the percentage of grass returned in each plot after the fire damage. The average percentage return for these 28 plots was 58.5% with a standard deviation of 6.5%. Which of the following represents a 95% confidence interval to estimate the average proportion of grass return one year after fire?
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
- 5.A spreadsheet contains a data set that consists of 100 values such that IQR > variance. However, these values must be converted using the following formula: NewValue = 2(OldValue)+10. Which of the following statements is true about the data set consisting of the NewValues?
- A.
The IQR has been increased by 10 units.
- B.
The IQR is now less than the variance.
- C.
The IQR is now double its previous size.
- D.
The IQR has been doubled and then increased by 10 units.
- E.
The IQR has been cut in half.
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