Thread: verify that f(x) is a pdf

f(x)= 32/(x+4)^3 for x>0

how do i verify f(x) is a pdf, i know f(x) has to be integrated, but between which limits cos i can't seem to get 1

Hi oyinkan,

Integrating over should do the trick.

Good luck!

The problem says "x> 0" so your integration should be from 0 to infinity.