Let X be an exponential random variable with parameter ̀ = 1, and let Y = log X. Find the probability density function of Y. Hint: First, find the cumulative distribution function Fy(y) = P(Y ≤ y) = P(log X ≤ y) = P(X ≤ e^y). Next, obtain the density function fy(y) of Y via differentiation as fy(y) = d/dy Fy(y).