A 2015 study conducted by the National Center for Health Statistics found that 51% of U.S. households had no landline service. This raises concerns about the accuracy of certain surveys, as they depend on random-digit dialing to households via landlines. Researchers pick nine U.S. households at random. a)  A What is the probability that all nine of them have a landline?(Round to five decimal places as​ needed b) What is the probability that at least one of them does not have a landline?(Round to five decimal places as​ needed c) What is the probability that at least one of them does have a landline? (Round to five decimal places as​ needed

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A 2015 study conducted by the National Center for Health Statistics found that 51% of U.S. households had no landline service. This raises concerns about the accuracy of certain surveys, as they depend on random-digit dialing to households via landlines. Researchers pick nine U.S. households at random. a) 
A What is the probability that all nine of them have a landline?(Round to five decimal places as​ needed
b) What is the probability that at least one of them does not have a landline?(Round to five decimal places as​ needed
c) What is the probability that at least one of them does have a landline? (Round to five decimal places as​ needed

 

 

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