More Discrete Probability Distributions

• Discrete
• Continuous

• 0
• 0.1
• 0.5
• 0.05

The table represents the probability of guessing correct on a 5 question true-false quiz.  Find the probability for at least 4 questions correct.

• .03125

• .15625

• .3125

• .1875

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

• None of these

• Abstract

• Continuous

• Discrete

• A

• B

• C

• D

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.

Find the mean (expected value) of the probability distribution.

• 85

• 83.2

• 87.1

• 84.4

• A

• B

• C

• D

• A

• B

• C

• D

What is the probability distribution of getting a sum of 3

• 0.0625

• 0.250

• 0.125

• 0.750