AP Stats Probability Practice

What is the probability that a student does play a sport given they do not play an instrument? 

• .2

• .2222

• .10

• .5

What is the probability that they speak French given they are a girl? 

• 2.14

• .24

• .4

• .8571

If A and B are mutually exclusive, which statement below must be true?

• P(A∩B) = 0

• P(A|B) = 0

• P(A∪B) = 0

• P(A) + P(B) = 1

A new credit card has been issued to 2000 customers. Of these customers, 1500 hold a Visa, 500 hold an AA card, and 40 hold a Visa and AA card. Find the probability that a random chosen customer holds a Visa and AA card, given they hold a Visa.

• .0267

• .02

• .3333

• 37.5

Is this a probability distribution?

• No, the sum of p(x) does not equal 1.

• Yes, all p(x) are between 0 and 1.

• No, all p(x) are not between 0 and 1.

• Yes, the sum p(x) is 1.

• A

• B

• C

• D

• E

Is this a probability distribution?

• No

• Yes

Find P( Full-time | Male)

• 7/3

• 3/10

• 3/7

• 4/7

What percentage of males drive sports cars?

• 35%

• 16.25%

• 65%

• 25%

What is P(Foreign language | Sport)?

• 14/27

• 7/12

• 23/47

• 37/47