Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 100 hours. If exactly 90% of the bulbs die before 910 hours, find the mean lifetime of the bulbs. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 100 hours. If exactly 90% of the bulbs die before 910 hours, find the mean lifetime of the bulbs. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 100 hours. If exactly 90% of the bulbs die before 910 hours, find the mean lifetime of the bulbs. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
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