Probability Binomial

Given n = 13 and p = 0.19 for a binomial distribution, find probability when r = 4

• 0.1399

• 9.88

• 0.81

• 0.1539

X is the number of heads when a fair coin is flipped 12 times

Find P(X = 4)

• 0.12

• 0.19

• 0.81

• 0.93

What does the q or (1-p) stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

What does the p stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

When rolling two dice, the probability of rolling doubles is ⅙. Suppose that a game player rolls the dice five times, hoping to roll doubles. What is the probability the player gets doubles less than three times in 5 attempts?

• 0.161

• 0.965

• 0.015

• 0.997

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood? 

• 0.088

• 0.697

• 0.214

• 0.303 

What does the n stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

You are a terrible driver. Whenever you drive, there is a 70% chance that you will run over a pedestrian. If you go for a drive 15 times, what is the probability that you will run over no more than 6 pedestrians?

• 0.985

• 0.015

• 0.988

• 0.012

Suppose 39% of Americans will vote for a presidential candidate in the independent party on election day.  If a random sample of 8 voters are selected, what is the probability that more than 5 will vote for that independent candidate?

• .9635

• .0365

• .9561

• .0439

You are playing against Mr. Foreman in a student/faculty basketball game. You know he is terrible at free throws (he has an 8% accuracy rate), so you keep fouling him. If he attempts 18 free throws, what is the probability that he makes at most 3 of them?

• 0.05

• 0.95

• 0.17

• 0.83