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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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In Exercise, find the probabilities and indicate when the

Chapter 4, Problem 27BSC

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QUESTION:

Problem 27BSC

 

In Exercise, find the probabilities and indicate when the “5% guideline for cumbersome calculations” is used.

Road Rage In a Prince Market Research survey of 2518 motorists, 252 said that they made an obscene gesture in the previous month.

a. If 1 of the surveyed motorists is randomly selected, what is the probability that this motorist did not make an obscene gesture in the previous month?

b. If 50 of the surveyed motorists are randomly selected without replacement, what is the probability that none of them made an obscene gesture in the previous month?

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QUESTION:

Problem 27BSC

 

In Exercise, find the probabilities and indicate when the “5% guideline for cumbersome calculations” is used.

Road Rage In a Prince Market Research survey of 2518 motorists, 252 said that they made an obscene gesture in the previous month.

a. If 1 of the surveyed motorists is randomly selected, what is the probability that this motorist did not make an obscene gesture in the previous month?

b. If 50 of the surveyed motorists are randomly selected without replacement, what is the probability that none of them made an obscene gesture in the previous month?

ANSWER:

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