Probability Events and Independence

P(Pizza ∩ Water) =

• 62/182

• 120/400

• 58/400

• 140/400

P(Pizza ∪ Water) =

• 264/400

• 42/400

• 58/400

• 264

• 42

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6

• 1/2

• 1/3

• 1/6

What is P(not sport)?

• 24/50

• 26/50

• 3/50

• 23/50

P(Pizza|Senior):

• 10/15

• 4/5

• 15/10

• 10/5

What equation can we use to test for independence of events?

• P(A|B)=P(A)

• P(A|B)=P(B)

• P(A∩B)=P(A)

• P(A∪B)=P(A)+P(B)-P(A∩B)

Are being a freshman and preferring pizza dependent events?

• independent

• dependent

What is P(B)? Round to three decimal places if necessary written as 0.123.

What is P(A∩B)? Round to three decimal places if necessary written as 0.123.

What is P(AUB)? Round to three decimal places if necessary written as 0.123.