Expected Value question: If E (Y) = 6, then E (6Y - 4) =

Question

If E (Y) = 8, then E (6Y - 4) =

Answer 1

E(y)=6

E(6y-4) = E(6y)-E(4) = 6E(y) - 4 = 6(6)-4 = 36-4 = 32

if E(y) = 8

E(6y-4) = E(6(8)-4) = E(48-4) = E(44) = 44

Answer 2

E(6Y-4) = 6 *E(y) - E(4) = 6 * E(y) - 4

if E(y)=6 then the answer is 32.

If E(y)=8 then the answer is 44

First, you said E(y)=6 ; then you said it is E(y)=8...

so there they are