Only Brainliest could answer this question! Let X1, X2, … XN be i. i.d. random variables on a given probability space, each having a finite mean μ ≠ 0 and a finite standard deviation σ ≠ 0. Let SN = X1 + X2 + … + XN. What are the mean and variance, respectively, of the random variable Z = (SN – E(SN)) / (Var(SN))0.5?

A) μ, σ

B) μ, 0

C) 0, 1

D) 0, 0

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values