1 Suppose the random variable Yhas a mean of 99 and a variance of 16. Let Z = (Y 99). m Show that #2 =0. yz=E[o.25' (Y 99)] = 0.25' [yy 99]=0 (Round your responses to two decimal places) Show that a; = 1. 6% = var [0.25' (y 99)] (Round your responses to two decimal places)