A new light bulb has an expected life of 18,620 hours, with a standard deviation of 4012
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A new light bulb has an expected life of 18,620 hours, with a standard deviation of 4012 hours. If the hours of life of these bulbs are normally distributed, find the probability that one of these bulbs chosen at random will last
(a) Less than 10,000 hours.
(b) More than 24,000 hours.
(c) Between 15,000 and 21,000 hours.
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Related Book For
Mathematical Applications For The Management, Life And Social Sciences
ISBN: 9781337625340
12th Edition
Authors: Ronald J. Harshbarger, James J. Reynolds
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