Probability Quiz

The R.R. Bowker Company of New York collects data on annual subscription rates to periodicals. In a recent independent study, it was found that 63% of all students at Mill University read Time magazine, 51% read U.S. News and World Report, and 24% read both magazines. If a student at Mill University is randomly selected, what is the probability that the student reads either magazine?

• 63% + 51% - 24%

• 63% x 51%

• 24%

• 63% + 51%

Tags

CCSS.HSS.CP.B.7

In Birthday Gifts, Brier and Rogers found that 71% of married men will get flowers or buy jewelry for their wives on their birthdays. Fifty-eight percent of married men will buy jewelry and 39% of married men will buy flowers for their wives. What is the probability that a married man will buy flowers and jewelry for his wife’s birthday?

• 39% x 71% - 58%

• 39% x 39% - 39%

• 71% = 58% x 71% - ?%

• 58%= 39% x 71% - ?%

Tags

CCSS.HSS.CP.B.7

The probability that a student owns a car is 0.65, and the probability that a student owns a computer is 0.82. If the probability that a student owns both is 0.55, what is the probability that a randomly selected student owns a car or computer?

• 0.82 - 0.55 - 0.65

• 0.65 + 0.82 - 0.55

• 0.82

• 0.55

Tags

CCSS.HSS.CP.B.7

At a particular school with 200 male students, 90 students play football or basketball. Of those 90 students, 58 play football and 40 play basketball. Find the probability that a randomly selected male student plays basketball and football.

Tags

CCSS.HSS.CP.B.7

A movie company surveyed 1000 people. 245 people said they went to see the new movie on Friday, 286 said they went on Saturday. If 24 people saw the movie both nights, what is the probability that a person chosen at random saw the movie on Friday or Saturday? Express your answer as a decimal to the nearest thousandth.

• .51

• .05

• .25

• .29

Tags

CCSS.HSS.CP.B.7

On New Year’s Eve, the probability of a person driving while intoxicated is 0.32, the probability of a person driving while intoxicated or having an accident is 0.35, and the probability of a person having a driving accident while intoxicated is 0.06. What is the probability of a person having a driving accident?

• .06

• .32

• .35

• .?

A total of 540 customers, who frequented an ice cream shop, responded to a survey asking if they preferred chocolate or vanilla ice cream. 308 of the customers preferred chocolate ice cream. 263 of the customers were female. 152 of the customers were males who preferred vanilla ice cream. What is the probability that a customer chosen at random is a male or prefers vanilla ice cream?

• .78

• .57

• .49

• .19

Tags

CCSS.HSS.CP.B.7

If P(A) = 0.24, P(B) = 0.41, and P(A and B) = 0.18, what is P(A or B)?

• .35

• .47

• .50

• .29

Tags

CCSS.HSS.CP.B.7

32% of families residing in a rural, farming town own a goat and 41% of families own a dog. 24% percent of families own both types of animals. If a family from this town is chosen at random, what is the probability that it owns either a goat or a dog?

• 49%

• 15%

• 25%

• 58%

Tags

CCSS.HSS.CP.B.7

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4