AnswersMathematics III ABinomial Distribution

Binomial Distribution Answers

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According to a poll, 30% of voters support a ballot initiative. Hans randomly surveys 5 voters. What is the probability that exactly 2 voters will be in favor of the ballot initiative? Round the answer to the nearest thousandth.

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A
0.024
B
0.031
C
0.132
D
0.309
2
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Two percent of mobile phones produced at a factory are defective. Which of the following is a binomial experiment?

A
Selecting phones randomly until a non-defective phone is chosen
B
Selecting phones randomly until 200 defective phones are chosen
C
Selecting 200 phones randomly and recording whether each phone is defective
D
Selecting a group of phones randomly and recording the number of defective phones in the group
3

Thirty-three percent of all students at a high school like beef stew. Out of 300 students, 40 are selected randomly and asked whether they liked beef stew. If liking beef stew is a success, what is the probability of a failure for this binomial experiment?

A
0.33
B
0.40
C
0.57
D
0.67
4

How many outcomes are possible for one event of a binomial experiment?

A
1
B
2
C
3
D
4

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