According to the Centers of Disease Control and Prevention, 52% of U.S. households had no landline and

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According to the Centers of Disease Control and Prevention, 52% of U.S. households had no landline and only had cell phone service. Suppose a random sample of 40 U.S. households is taken.

a. Find the probability that exactly 20 the households sampled only have cell phone service.

b. Find the probability that fewer than 20 households only have cell phone service.

c. Find the probability that at most 20 households only have cell phone service.

d. Find the probability that between 20 and 23 households only have cell phone service.

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Introductory Statistics Exploring The World Through Data

ISBN: 9780135163146

3rd Edition

Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan

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Question Posted: Jul 14, 2021 03:42 AM

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According to the Centers of Disease Control and Prevention, 52% of U.S. households had no landline and

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Introductory Statistics Exploring The World Through Data

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