please help with this problems. Thank you in Advance

18. LetX1,X are independent and identically distributed standard uniform random variables. Find the following cxpectations Emax(X,,X2. ...,X (b) E[min(X1,X2 ,%)] 19. Consider a Bemoulli random variable X that takes the values 0.5 and 1.5 with cqual probabilities. Let X(n) -X be the average of n independent samples of X (a) Calculate Pr(0.75 0 and f (x)-0, otherwise. -b-3b-b (a) Find the variance of X b) Determine Pr( Estimate Pr(xIusing Chebychev inequality O Type here to search