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An LED light bulb has an exponentially distributed life expectancy, with a mean time of 5000 hours. What is the probability a light bulb will: a) Last more than 4000 hours? b) The bulb has already lasted 5000 hours. What is the probability it will last more than 9000 hours?

An LED light bulb has an exponentially distributed life expectancy, with a mean time of 5000 hours. What is the probability a light bulb will: a) Last more than 4000 hours? b) The bulb has already lasted 5000 hours. What is the probability it will last more than 9000 hours?

MATLAB: An Introduction with Applications
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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An LED light bulb has an exponentially distributed life expectancy, with a mean time of 5000 hours. What is the probability a light bulb will: a) Last more than 4000 hours? b) The bulb has already lasted 5000 hours. What is the probability it will last more than 9000 hours?
Transcribed Image Text:An LED light bulb has an exponentially distributed life expectancy, with a mean time of 5000 hours. What is the probability a light bulb will: a) Last more than 4000 hours? b) The bulb has already lasted 5000 hours. What is the probability it will last more than 9000 hours?
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