1. The problem statement, all variables and given/known data Let X have an Exp(1/2) distribution. Determine the distribution function of 1/2X. What kind of distribution does 1/2X have? 3. The attempt at a solution I can't seem to do this quite properly. I thought of doing the integral from x to -inf of 1/2X dx but that doesn't seem right. I know what a exponential distribution is but nothing else from there. Is it just something like X = exp(1/2) therefore 1/2X = exp(1/4) or something along those lines? thanks for the help in advance.