If a random variable X] is distributed as a gamma distribution with parameter a = I and B = 9 while X2 is another random variables from gamma dlstrlbution wlth a = 2 and = 2 Note that, X1 and X2 are independent random variable. I} Find the moment generating function of Y = 20K1 + 2X1). ii} Based on the answer In {I}. state the distribution of Y with Its corresponding parameters and hence, write the probability density function of Y