Question

Let X and Y be two independent random
variables denoting the amount of energy
produced through solar and through wind in
a particular hour. However, due to
transmission losses the effective energy
produced is, Z = 0.8X + 0.7Y. The mean and
standard deviation of X are 5 and 2
respectively, while those of Y are 10 and 6
respectively.
9) The expected value of Z, E[Z] =

Answer 1

Answer:

not a english language QUESTION