Probability and Two Way Tables

The question “Do you play soccer?” was asked of 110 students. Results are shown in the table.

Given a student is female, what is the probability the student plays soccer?

• 12/54

• 42/54

• 12/35

• 42/75

Given a student doesn’t play soccer, what is the probability the student is male?

• 33/56

• 23/56

• 33/75

• 23/35

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

What is the probability that a randomly selected employee is a chief?

• 1/100

• 2/100

• 1/33

• 1/67

What is the probability a randomly selected student has no license?

• 20/60

• 32/120

• 20/32

• 20/59

What percentage of the days that it rained, did they forecast no rain?

• About 20%

• About 18%

• About 14%

• About 12%

Of the times when the forecast called for rain, what is the percentage that it actually rained?

• About 90%

• About 50%

• About 70%

• About 80%

Out of those surveyed, what is the probability that the student is a boy who can't bike to school (in simplest form)?

• 4/30

• 7/30

• 2/15

• 14/30

What is the probability you choose a child that likes Vanilla?

• .239

• .082

• .314

• .286

What is the probability you select a teen given that the person likes chocolate?

• .112

• .267

• .164

• .056

Given the person is a child, what is the probability they would pick neither?

• .26

• .195

• .286

• .214