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## Homework Statement

The RV X has parameter p>0 and distribution:

f

_{X}(x) = pxe

^{-px}for x [tex]\geq[/tex] 0 and is 0 otherwise

(The subscript X is a capital letter, as is the X mentioned below in the e

^{4X})

If we are to consider the RV D= e

^{4X}, determine the range and distribution f

_{D}(d)

## Homework Equations

## The Attempt at a Solution

I found this question as an exercise in a textbook, but do not know how to answer it!

Does anyone have any suggestions that I can try out please?