Let X,,X2, X, be independent and identical normal variables with respective means Ml1 = 5,112 = 10, M3 = 15 and M4 = 20
Posted: Thu Jul 14, 2022 4:50 pm
Let X,,X2, X, be independent and identical normal variables withrespectivemeans Ml1= 5,112= 10, M3 = 15 and M4 = 20 and respective variances 01 = 1, 02 =2,03 = 3andO= 4. IY = X, + X2 + X3 + Xa(a) Find E(M)and VAR(Y)(b)Find P(46 < Y < 52)