In the production of shafts, it is assumed that the diameters of the shafts produced are normally

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In the production of shafts, it is assumed that the diameters of the shafts produced are normally distributed, with mean = 50mm and variance = 8mm2. What is the probability that the diameter of a shaft will be at least 48 mm?
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Engineering Economy

ISBN: 978-0132554909

15th edition

Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling

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