AP Statistics Chapter 5 Review

Dr. Stats plans to toss a fair coin 10,000 times in the hope that it will lead him to a deeper understanding of the laws of probability. Which of the following statements is true?

• It is unlikely that Dr. Stats will get more than 5000 heads.

• Whenever Dr. Stats gets a string of 15 tails in a row, it becomes more likely that the next toss will be a head.

• The fraction of tosses resulting in heads should be exactly ½

• The chance that the 100th toss will be a head depends somewhat on the previous 99 tosses.

• It is likely that Dr. Stats will get about 50% heads.

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.2

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Choose an American household at random and record the number of vehicles they own. Here is the probability model if we ignore the households that own more than 5 cars:

A housing company builds houses with two-car garages. What percent of households have more cars than the garage can hold?

• 7%

• 13%

• 20%

• 45%

• 55%

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

One thousand students at a city high school were classified according to both GPA and whether or not they consistently skipped classes. The table summarizes the data:

What is the probability that a student has a GPA of under 2.0?

• 0.227

• 0.255

• 0.450

• 0.475

• 0.506

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

One thousand students at a city high school were classified according to both GPA and whether or not they consistently skipped classes. The table summarizes the data:

What is the probability that a student has a GPA under 2.0 or has skipped many classes?

• 0.080

• 0.281

• 0.285

• 0.365

• 0.727

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.7

One thousand students at a city high school were classified according to both GPA and whether or not they consistently skipped classes. The table summarizes the data:

What is the probability that a student has a GPA under 2.0 given that he or she has skipped many classes?

• 0.080

• 0.281

• 0.285

• 0.365

• 0.727

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

Choose an American adult at random. The probability that you choose a woman is 0.52. The probability that the person you choose has never been married is 0.25. The probability that you choose a woman who has never been married is 0.11. The probability that person you choose is either a woman or has never been married (or both) is therefore about

• 0.77

• 0.66

• 0.44

• 0.38

• 0.13

Tags

CCSS.HSS.CP.B.7