Hey michellederz.
Checking with R, I get
> 1*0.23 + 2*0.3738 + 3*0.27 + 4*0.0731
[1] 2.08
The random X is defined in (g). Compute the mean of X. Report this and all subsequent anwers with 4 decimal places.
x 1 2 3 4 P(x) 0.0531 0.2300 0.3738 0.2700 0.0731
I keep getting: E(x) =
(0.2300)+(0.7476)+(0.8100)+(0.2924) = 2.08