Hello, I have this exercise to do but I don’t know where to start. How can I compute the expected value of Y if I have only these data? Is there a specific formula for the E(Y) knowing only the variance of X?

12. The random variable X has expected value EDI] = 9.5 and variance V[X] = 239. Consider the random variable Y, obtained from X by the linear transformation:Y = a + l:- – Xwith a = ‘27 and l:- = —4. Then} the expected value of Y3, E[Y]j is: {a} 9.5{b} the other two answers are wrong (o) 438