Conditional Probability and Independence in AP Statistics

How many students said they had a part-time job and paid for their own car insurance?

• 5

• 6

• 13

• 14

What is the probability that a student pays for their own car insurance?

• 6/14

• 5/28

• 5/14

• 6/28

What does the vertical bar in a conditional probability statement represent?

• Given

• And

• Or

• Not

How do you read the probability statement P(A|B)?

• Probability of A given B

• Probability of A or B

• Probability of B given A

• Probability of A and B

What is the formula for conditional probability P(A|B)?

• P(A or B) / P(A)

• P(A) / P(B)

• P(A and B) / P(B)

• P(B) / P(A)

What is the probability that a student pays for their own car insurance given that they have a job?

• 5/14

• 6/28

• 5/28

• 14/28

Does having a job affect the probability of paying for car insurance?

• No

• Yes

• Not enough data

• Sometimes

What is the probability that a student has to pay for their own car insurance if they don't have a job?

• 5/14

• 1/14

• 6/28

• 1/28

What is the overall probability that a student is a student athlete?

• 1/3

• 2/3

• 3/4

• 1/2

Are the events of being a student athlete and having a parent who was a student athlete independent?

• Yes

• No

• Sometimes

• Not enough data