TEST ON BINOMIAL PROBABILITIES

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?

• 3.58%
• 5.46%
• 22.67%
• 100%

Tags

CCSS.HSS.CP.B.9

A Stats  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 exactly 2 questions correct?

• 0.6250
• 0.25
• 0.0625
• 0.2636

Tags

CCSS.HSS.CP.B.9

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

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

If a fair coin is tossed 200 times, what is the probability that at least 99 but less than 110 heads turn up?

• 0.4945
• 0.4387
• 0.5153
• 0.4595

Tags

CCSS.HSS.MD.A.1

4. When rolling two dice, the probability of rolling doubles is ⅙. Suppose that a game player rolls the dice four times, hoping to roll doubles. Find the probability that the player gets doubles twice in 4 attempts.

• 88.4%
• 11.6%
• 98.4%
• 1.6%

Tags

CCSS.HSF-LE.A.1C

According to a recent survey, 15% of houses in America are haunted by a ghost. If your neighborhood has 40 houses, what is the probability that 5 or more of them are haunted?

• 0.74
• 0.26
• 0.57
• 0.43

Tags

CCSS.HSS.CP.B.9

Let n=20, q = .6, Find the probability of 12 successes

• 3.55%

• 35.55%

• 24%

• 12.90%

Find the mean of the probability distribution.

• 85
• 83.2
• 87.1
• 84.4

Tags

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

Suppose you roll a fair die.  You earn 30 points for an even number, 20 points for rolling 5 and 10 points for anything else.
What is the mean number of points that you will earn?

• 23.33
• 25
• 20
• 26

Find the variance of a binomial distribution with 50 trials and p= 0.4

• 12

• 15

• 10

• 20