AP Stats Probability Distributions

When do two events overlap in a probability Venn Diagram?

• When the two events are not mutually exclusive.

• When the two events are mutually exclusive.

• Two events are always overlapping in a Venn Diagram.

• Two events never overlap in a Venn Diagram.

P(Freshman or Pizza):

• 27/50

• 4/50

• 3/50

• 30/50

P(Pizza ∩ Water) =

• 62/182

• 120/400

• 58/400

• 140/400

What is mutually exclusive probability?

• The probability that two events are equally likely to occur.

• The probability that two events are completely unrelated.

• The probability that two events cannot occur at the same time.

• The probability that two events always occur together.

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

The following table represents the probability distribution X, the employment status of adults in a city. What is the probability that the adults isn't retired?

The following table represents the probability distribution X, the employment status of adults in a city.

What is the probability that the adults isn't retired?

If two events are mutually exclusive, what is the probability of both events occurring?

• 1

• 0.5

• 0

• 0.25