5.88 A video-rental chain estimates that annual expenditures of members on rentals follow a normal distribution with
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5.88 A video-rental chain estimates that annual expenditures of members on rentals follow a normal distribution with a mean of $100. It was also found that 10%
of all members spend more than $130 in a year. What percentage of members spends more than $140 in a year?
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Related Book For
Statistics For Business And Economics
ISBN: 9780273767060
8th Global Edition
Authors: Paul Newbold, Mr William Carlson, Ms Betty Thorne
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