The life (in hours) of a certain kind of light bulb is a random variable with probability density function defined by (a) What is the expected life of such a bulb (b) Find (c) Find the probability that one of these bulbs lasts longer than 1 standard deviation above the mean (d) Find the median life...

The life (in hours) of a certain kind of light bulb is a random variable with probability

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The life (in hours) of a certain kind of light bulb is a random variable with probability density function defined by

(a) What is the expected life of such a bulb?
(b) Find σ.
(c) Find the probability that one of these bulbs lasts longer than 1 standard deviation above the mean.
(d) Find the median life of these bulbs.

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Calculus With Applications

ISBN: 9780135871348

12th Edition

Authors: Margaret L. Lial

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Question Posted: Jan 23, 2023 03:41 AM

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The life (in hours) of a certain kind of light bulb is a random variable with probability

Question:

f(t) = 1 58 Vt for t in [1,900].

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a b c d The median life ...View the full answer

Calculus With Applications

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