Suppose that lifetime of bulb of type n is exponentially distributed with meanvalue n years, where n = 1, 2, 3, 4, 5.A bulb is equally likely be chosen from these five types.(a)Find the probability that the selected bulb can survive for at least 3 years.(b)Find the variance of the lifetime of the selected bulb.

Given,there are 5 types of bulbs.the lifetime of a bulb of type n follows an exponential…

Answered: (a)Find the probability that the…

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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(a)Find the probability that the selected bulb can survive for at least 3 years. (b)Find the variance of the lifetime of the selected bulb.