Binomial Probability

If you were to flip a coin 20 times, what is the probability you would get exactly 10 heads?

• 50%

• 17.62%

• 58.81%

• 41.19%

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

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

If you were to flip a coin 20 times, what is the probability you would get at least 13 heads?

• 94.23%
• 13.16%
• 5.77%
• 7.39%

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.)

• 96.2%

• 13.2%

• 8.31%

• 25.0

A quarterback has a passing percentage of 70%. What is the probability that he does NOT complete 8 of his 20 passes?

• 11.44%

• 12.45%

• 54%

• 12.34%

A coin is tossed ten times.  What is the probability that there are exactly 6 heads?

• 20.51%
• 90%
• 45.68%
• 34.65%

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

• 336

• 56

• 8/5

• 40,320

• 54

• 504

• 60,480

• 84

If p = 82%, what is q?

• 0.82

• 0.41

• 0.18

• 0.6724