The pdf of the time to failure of an electronic component in

The pdf of the time to failure of an electronic component in a copper (in hours) is f(x) = [exp (-x/3140 for x > 0 and f(x) =0 for x

Solution

a) integrating pdf from 1040 to infinity we get = 0.71805
b) integrating pdf from 1040 to 2010 we get = 0.1908
c) integrating pdf from 0 to 3110 we get = 0.6285
d) equating pdf to 0.14 we get =473.584
e) integrating pdf *x from 0 to infinity we get mean =3140