Chapter 5 Review AP Statistics

About 7% of men in the United States have some form of red-green color blindness. Suppose we want to simulate randomly selecting 4 U.S. adult males to determine the probability that at least one is red-green color-blind. Which of these are correct assignments of digits for this simulation?

• 0-7 = color-blind, 8-9 = not color-blind

• 1-6 = color-blind, 7-10 = not color-blind

• 01-07 = color-blind, 08-99 & 00 = not color-blind

• 00-10 = color-blind, 11-99 = not color-blind

The two-way table above gives information about the grades for the semester in Mrs. Hardcase’s English class.

1) What is the probability a randomly selected student got an A or B for the semester?

• 15/100

• 20/100

• 35/100

• 65/100

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

CCSS.HSS.CP.B.7

The two-way table above gives information about the grades for the semester in Mrs. Hardcase’s English class.

4) Given that the grade is an A, what is the probability of the student being female?

• 8/20

• 12/20

• 8/44

• 12/56

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.ID.B.5

CCSS.HSS.CP.B.6

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 0.40

• 0.05

• 0.16

• 0.14

A basket contains 5 purple pencils and 9 brown pencils. If two pencils are picked at random one after the other without replacement, then what is the probability that both the pencils are purple?

• 0.05

• 0.03

• 0.02

• 0.11

How many senior boys play football but do not wrestle?

• 9
• 12
• 18
• 104

Tags

CCSS.HSS.CP.A.1

The probability that a randomly selected student in AP Statistics will do their closer on time is 0.18. What's the probability that out of a group of 6 students, at least one of them will turn their closer on time?

• 0.000034

• 0.82

• 0.304

• 0.696

• 0.18

The probability that a randomly selected student in AP Statistics will do their closer on time is 0.18. What's the probability that out of a group of 6 students, none of them turn their closer in on time?

• 0.000034

• 0.82

• 0.304

• 0.696

• 0.18

Can two events be both mutually exclusive and independent?

• Yes

• No

Let's pretend that on this test last year students averaged a 6 out of 10 on the multiple choice section with a standard deviation of 2. If Mrs. O was feeling crazy and doubled each MC score then subtracted 1, what would the new mean and standard deviation be?

• mean = 6, sd = 2

• mean = 12, sd = 4

• mean = 11, sd = 3

• mean = 11, sd = 4

• mean = 12, sd = 3