Ap Statistics Semester Exam Review Worksheets With Answer Key (Page 5 of 9) in pdf

Chapter Five:

37. A politician wants to know how the residents of his district will react to a bill that lowers the driving

age to 15 years old. He runs an ad during the evening news on a local television station that says:

Let us know what you think! Would you be in favor of allowing 15-year-old children to get their driver’s

license, or would you rather keep the driving age at 16-years-old, when they are more mature and

ready to take on the responsibility of driving? Give us a call at 555-7834, and give us your opinion!

Which of the following types of bias are present in this ad: voluntary response bias, convenience

sampling, undercoverage bias, non-response bias, poor wording effect bias?

38. When asked what their favorite sport is, 44% of American men say football, 26% say baseball, 22% say

basketball, 5% say soccer, 2% say hockey, and 1% say something else. Use the following sequence of

random numbers to simulate asking 30 men about their favorite sport. Clearly explain the process you

used in your simulation.

14459 26056 31429 80371 65103 62253 50490 61181 38967 98532 62183 70632 23417 26185

39. A report on a new brand of headache medicine, Probanol, is published that says, “After extensive

research, there is statistically significant evidence that Probanol reduces the likelihood of getting a

migraine headache.” Explain what that means to someone who doesn’t know anything about statistics.

An eye doctor believes that he has invented a new drop that improves eyesight. He randomly selects 200

people, and he has them read an eye chart. He then administers the drops and has them read a similar eye

chart, noting any improvement. However, despite telling everyone that they will be receiving the new drops,

he only gives 100 of the subjects the actual drops; the other half of the sample is simply given water drops.

40. What is the purpose of the water drops? Why couldn’t the eye doctor simply have administered his

drops and noted improvement?

41. What is the factor in this experiment? What are the treatments?

42. Is this experiment blind? Is it double-blind?

The principal wants to know if the BHS student body would like the library to stay open longer during the day.

She gathers a random sample of 100 students from each grade level.

43. What is the population of this study?

44. Which of these most accurately describes this sample: simple random sample, stratified random

sample, or census?

Chapter Six:

45. The probability that Event A occurs is 0.48, and the probability that Event B occurs is 0.62. The

probability that both occur at the same time is 0.23. Draw a Venn diagram to represent this situation.

Then use it to find P(A and B), P(A

and B), P(A and B

), P(A

and B

), P(A|B), and P(B|A).

46. Event A is that you will complete this exam review. Event B is that you will get an A on the semester

exam. Are Events A and B disjoint? Are they independent?

Ap Statistics Semester Exam Review Worksheets With Answer Key Page 5