Probability Using 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

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 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.

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

• 20/100

• 35/100

• 65/100

• 87/100

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 randomly selected student plays sports and does not participate in community service?

• .4444

• .3333

• .1484

• .3

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

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

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%

What percent of people who bought no food purchased water?

• 14.3%

• 33.3%

• 5%

• 41.1%

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