Graphing a Probability Distribution for a Discrete Random Variable Based on Empirical or Theoretical Probabilities

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 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

Is the following a probability distribution?

• Yes, because all of the probabilities are between 0 and 1 inclusive and the sum of all the probabilities is 1.

• No, all probabilities are not be between 0 and 1 inclusive

• No, the sum of all the probabilities is not 1.

• Yes, because the distribution is symmetric

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

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

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.7

The probability distribution shows the percentage of shark sightings for each day at a random beach in California. What percent of the days are there EXACTLY 5 shark sightings?

• 0.97

• 0.96

• 0.04

• 0.03

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct? (You need to figure out the p value first. It is not given to you.)

• 0.962

• 0.132

• 0.831

• 0.250

Tags

CCSS.HSS.CP.B.9

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

• None of these

• Abstract

• Continuous

• Discrete

An algebra 2 test has 5 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 5 questions, what is the probability that you get at least 1 question correct?

• 0.2373

• 0.3955

• 0.7627

• 0.6045

Suppose that the McAllister's purchased 15 plane tickets for an upcoming family trip to Paris. Each ticket independently has a 0.01 probability of being accidentally thrown away. What is the probability that exactly one of the tickets is accidentally thrown away?

• (1/15)(0.01)

• (0.01)(1)+(0.99)(14)

Answer explanation