Probability from Two-Way Tables

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

• 15/100

• 20/100

• 35/100

• 65/100

What is the probability a randomly selected student is male?

• 12/100

• 17/100

• 44/100

• 56/100

What is the probability a randomly selected student earned a passing grade?

• 20/100

• 35/100

• 65/100

• 87/100

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

What is the probability that a student was a Female or earned a B?

• 0.09

• 0.5

• 0.44

• 0.56

Chelsea surveyed a sample of students in the senior class to determine the distribution of students with a driver’s license.

Given that a student has a permit, what is the probability the student is female?

• 15/29

• 33/59

• 15/60

• 15/120

What is the probability that a student plays sports given that they do community service?

What is the probability that a randomly selected student plays sports and does not participate in community service?

• .4444

• .3333

• .1484

• .3

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

Given that the grade is a B, what is the probability of the student being male?

• 6/15

• 9/15

• 6/56

• 9/44

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

• 1/100

• 2/100

• 1/33

• 1/67