Binomial Probability

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.)

• .962

• .132

• .0831

• .25

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 exactly 2 of the first 20 blood donors have Type B blood? 

• 0.316
• 0.282
• 0.001
• Not here

Barry Bonds has a career batting average of .298. What is the probability that he will get on base 6 times in 10 at bats?

• .0358

• .0546

• .2267

• 1

When rolling a fair die 100 times, what is the probability of rolling a "4"exactly 25 times?

• 0.010
• 0.167
• 0.25
• 0.021

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

• Number of trials
• Number of Successes
• Probability of Successes
• Probability of Failures

The probability that Tim will sink a foul shot is 70%. If Tim attempts 30 foul shots, what is the probability he sinks exactly 21 foul shots?

• .157

• .681

• .70

• .724

Tags

CCSS.HSS.MD.B.6

CCSS.HSS.MD.B.7

A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are randomly selected, find the probability that exactly 5 people have their pets bathed professionally

• 3.42
• 1.03
• 0.072
• 0.199

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

• Number of trials
• Number of Successes
• Probability of Successes
• Probability of Failures

You have decided to drop out of school and move to Vegas, where you will learn to count cards and get rich. If you draw 12 cards out of a deck (with replacement), what is the probability that you get at least 7 red cards?

• 0.39
• 0.61
• 0.19
• 0.81

You trick Miss Soldan into playing for the juniors in the Powder Puff football game. As a quarterback, she typically completes 3% of her passes. If she has 25 passes in the game, what is the probability that she will 21 incomplete passes?

• 0.0054

• 0

• 0.0001

• 0.99