Round to 3 decimal points

Suppose X, Y, and Z are three Independent normal random variables. X has an expected value of 4 and a standard deviation of 1,3; Y has an expected value of 6 and a standard deviation of 0.8; Z has an expected value of -8 and a standard deviation of 0.5 Let T = 2X + 4Y + 4Z Variable X Mean(Expected Value) Standard Deviation 0.8 0.5 Coefficient a) What is the probability that X > 27 b) What Is the expected value of T? c) What is the variance of T? d) What is the standard deviation of T? e) What is the probability that T is within 0.8 standard deviations of it's mean? () What is the probability that T Is > 87 g) What is the probability that T Is 07 nto the text box here