1. Suppose x is a continuous random variable having distribution F(x).
(a) Show that y = F(x) is uniformly distributed over (0, 1).
(b) If U is a uniform (0, 1) random variable, then show that F^-1(U) has
distribution F, where F^-1(x) is the value of y such that F(y) = x.
完全唔知想點..