Discrete Probability Distributions

The table above shows the number of cell phones per household in a small town. Find the standard deviation. Round to the nearest hundredth.

• 0.80

• 1.70

• 1.30

• 1.00

Classify: The numbers of cheeseburgers a fast-food restaurant serves each day

• Discrete

• Continuous

The table above shows the number of cell phones per household in a small town. Find the mean round to the nearest hundredth.

• 2.80

• 2.93

• 0.10

• 0.14

What is the numerical quantity assigned to the outcome of an experiment usually denoted by an uppercase letter such as X?

• Frequency

• Probability

• Random variable

• Sample

If two coins are tossed, which is NOT a possible value of the random variable for the number of heads?

• 0

• 1

• 2

• 3

• Yes

• No

• Maybe

• Cannot be determined

Using the probability distribution, find P(X > 1).

What formula describes the probability distribution?

Given the probability distribution, what is P(X < 1)?

Determine which of the following distribution is NOT a probability distribution.

• A

• B

• C

• D