answer all three questions with explanation

1. Let the lifetime density function is a(1a) () '6 if ySn W (31)3 if y > n, where n 2 0, '25 > 0 and a E (0,1). Using this density, answer the following questions My; n: (:5) = (21). Find the mean and median life time of Y (b). Find the maximum likelihood estimator (MLE) of 6 = (n,>,cr). (c). Derive an asymptotic results of the MLE of 6