What is the probability that at least five have adequate earthquake supplies?    2.Is it more likely that none or that all of the residents surveyed will have adequate earthquake

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 11 California residents. We are interested in the number who have adequate earthquake supplies.

 

1. What is the probability that at least five have adequate earthquake supplies? 

 

2.Is it more likely that none or that all of the residents surveyed will have adequate earthquake supplies? Why? (Round your answers to four decimal places.)

The probability that none of the residents have adequate earthquake supplies is _______, while the probability that all of the residents have adequate earthquake supplies is ______  . Therefore it is more likely that 
( none or all )of the residents will have adequate earthquake supplies.
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