Let Xi be uniform in [-1, 1], X2 be uniform in [-1, X1], X3 be uniform in [-1, Xa). ..., and X, be uniform in [-1, X-1). Note that X, is also the product of n uniform random variables. Please find the marginal pdf of X. Let Xi be uniform in [-1, 1], X2 be uniform in [-1, X1], X3 be uniform in [-1, Xa). ..., and X, be uniform in [-1, X-1). Note that X, is also the product of n uniform random variables. Please find the marginal pdf of X.