Chapter 5 Statistics

In a particular game, a fair die is tossed. If the number of spots showing is either four or five, you win $1. If the number of spots showing is six, you win $4. And if the number of spots showing is one, two, or three, you win nothing. You are going to play the game twice.
The probability that you win $4 both times is

• 1/6

• 1/3

• 1/36

• 1/12

An event A will occur with probability 0.5. An event B will occur with probability 0.6. The probability that both A and B will occur is 0.1.
The conditional probability of A given B is

• .5

• .3

• .2

• 1/6

If you buy one ticket in the Provincial Lottery, then the probability that you will win a prize is 0.11. If you buy one ticket each month for five months, what is the probability that you will win at least one prize?

• .55

• .50

• .44

• .45

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

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.

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

• 15/100

• 20/100

• 35/100

• 65/100

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

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

• 8/20

• 12/20

• 8/44

• 12/56

How many senior boys play football but do not wrestle?

• 9

• 12

• 18

• 104

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