According to a study by the Pew Research Center, 15% of adults in the United States do not use the Internet (Pew Research Center website, December, 15, 2014). Suppose that 10 adults in the United States are selected randomly. a. Is the selection of the 10 adults a binomial experiment? Explain. b. What is the probability that none of the adults use the Internet? c. What is the probability that 3 of the adults use the Internet? d. What is the probability that at least 1 of the adults uses the Internet?

According to a study by the Pew Research Center, 15% of adults in the United States do not use the Internet (Pew Research Center website, December, 15, 2014). Suppose that 10 adults in the United States are selected randomly. a. Is the selection of the 10 adults a binomial experiment? Explain. b. What is the probability that none of the adults use the Internet? c. What is the probability that 3 of the adults use the Internet? d. What is the probability that at least 1 of the adults uses the Internet?

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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a. Is the selection of the 10 adults a binomial experiment? Explain.

b. What is the probability that none of the adults use the Internet?

c. What is the probability that 3 of the adults use the Internet?

d. What is the probability that at least 1 of the adults uses the Internet?

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