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# Lifespan

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A lifespan in hours for an electrical component is a random variable x, with cumulative dist. funct.:

F(x) = {1-e^-x/100 for x>0
0 elsewhere

Determine probability function x for x:

a.) F(x) = {100e^-x/100 for x>0
0 elsewhere

b.) F(x) = {1-1/100e^-x/100 for x>0
0 elsewhere

c.) F(x) = {1/100e^-x/100 for x>0
0 elsewhere

d.) F(x) = {x/100e^-x/100 for x>0
0 elsewhere

##### Solution Summary

A lifespan in hours for an electrical component is a random variable x, with cumulative dist. funct.:

F(x) = {1-e^-x/100 for x>0
0 elsewhere

Determine probability function x for x:

a.) F(x) = {100e^-x/100 for x>0
0 elsewhere

b.) F(x) = {1-1/100e^-x/100 for x>0
0 elsewhere

c.) F(x) = {1/100e^-x/100 for x>0
0 elsewhere

d.) F(x) = {x/100e^-x/100 for x>0
0 elsewhere

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The cumulative distribution function is F(x), ...

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