AP Stats Unit 5

• 17.5%
• 10%
• 12.5%
• 25%

P(Freshman or Pizza):

• 27/50

• 4/50

• 3/50

• 30/50

P(Sandals):

• 16/22

• 20/36

• 5/9

• 20/16

P(Pizza ∩ Water) =

• 62/182

• 120/400

• 58/400

• 140/400

P(Sandals|Pants):

• 4/20

• 6/15

• 1/2

• 2/7

P(Shorts and Shoes):

• 1/6

• 6/16

• 22/16

• 6/22

A set of all possible outcomes is known as - 

• a list

• a complement

• a sample space

• an event

What statement does the shaded region represent?

• A and B and C

• A or B and C

• B and C

• A or C

In a large population, 46% of the households own DVD recorders. A simple random sample of 100 households from this population is to be contacted and the sample proportion computed. Which of the following expressions represents the probability that more than half the households sampled will own a DVD recorder?

• A

• B

• C

• D

• E

28% of all Suncoast students believe in Santa. You take a sample of 50 students and find that 15 of them believe in Santa. What does 15/50 represent?

• n

• P

• phat

• standard deviation