You need to find the pdf of . One approach would be to use the method of distribution functions (which is certain to be explained somewhere in your class notes and textbook).

If you need more help, please show all your work and say where you are stuck.

Edit:In fact, I have just seen this thread http://www.mathhelpforum.com/math-he...tribution.html and your question is pretty much identical to what has been asked and answered there already.

Thread closed.