Question: Consider the function f(x)= 1/6exp(-x/6), x>0. a) demonstrate its a density, that is, it's not negative and 0 f ( x ) d x =

Consider the function f(x)= 1/6exp(-x/6), x>0.

a) demonstrate its a density, that is, it's not negative and0f(x)dx=1

b) calculate the generating function of moments and their mean and variance

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