Suppose the random variables X, Y, Z have the joint probability
density function f(x,y,z)=8xyz for 0 < x < 1, 0 < y <
1, and 0 < z < 1. Determine the following:
i) Conditional probability distribution of X given that Y = 0.5
and Z = 0.8
ii) P(X < 0.5 | Y = 0.5, Z = 0.8)