A company installs new central-heating furnaces and has found that for 15% of all installations, a return
Question:
a. What is the probability that a return visit will be needed in all these cases?
b. What is the probability that a return visit will be needed in none of these cases?
c. What is the probability that a return visit will be needed in more than 1 of these cases?
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Related Book For 
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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