Test 10 Review

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

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

2) What is the probability a randomly selected student is male?

• 12/100

• 17/100

• 44/100

• 56/100

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

4) , What is the probability of the student being female given that the grade is an A?

• 8/20

• 12/20

• 8/44

• 12/56

The make-up of employees at a police station is shown in the table above:

7) What is the probability that a randomly selected employee is male and a sergeant?

• 8/13

• 8/33

• 8/67

• 8/100

How many students do not snowboard?

• 21

• 22

• 28

• 29

How many students do not ski or ice skate?

• 10

• 16

• 22

• 28

Which region(s) represent students that enjoy swimming and tennis?

• B

• D

• B and D

• A and C

You pick a marble from this bag.

What is the probability you will choose either a black or white marble?

• 3/5

• 9/100

• 1/10

• 2/5

In a school the probability that a student takes Technology and Spanish is 0.087. The probability that a student takes technology is 0.68. What is the probability that a student takes Spanish given that the student is taking Technology?

• 7.8%

• 12.8%

• 5.9%

• Not enough information

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play football?

• ⁶⁶/₈₀

• ⁴/₈₀

• ¹⁸/₈₀

• ⁴⁹/₈₀