Probability with Two Way Tables

What is the probability that a randomly selected student is an 8th grade boy? Round to the nearest percent.

• 2%

• 44%

• 46%

• 20%

What is the probability that a randomly selected student is a 7th grade girl? Round to the nearest percent.

• 54%

• 14%

• 26%

• 32%

What is the probability that a randomly selected student is a 6th grader given that they are a girl? Round to the nearest percent.

• 8%

• 16%

• 30%

• 53%

What is the probability that a randomly selected student is a boy given that they are in 7th grade? Round to the nearest percent.

• 12%

• 6%

• 26%

• 46%

Given that a randomly selected student is a boy, what is the probability that they are in 7th grade? Round to the nearest percent.

• 12%

• 6%

• 26%

• 46%

What is the probability that a randomly selected politician is a republican? Round to the nearest percent.

• 46%

• 54%

• 50%

• 99%

What is the probability that a randomly selected politician does not support the issue given that they are republican? Round to the nearest percent.

• 28%

• 55%

• 48%

• 33%

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?

Mathematical Equivalence

ON

What is the probability that a student plays on a sports team given they don't play an instrument? 

• .7273

• .8

• .55

• .2222

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?(Not F)

Mathematical Equivalence

ON