What does the variance sum law state?
A)That the variance of a difference between two independent variables is equal to the sum of their variances.
B)That the sum of the variances of two independent variables is larger than the sum of their individual variances.
C)That the variance of a difference between two independent variables is larger than the sum of their variances.
D)That the variance of a difference between two independent variables is smaller than the sum of their variances.

Question

Quizplus · Accepted Answer

The variance sum law states that the variance of a difference between two independent variables is equal to the sum of their variances. This can be expressed mathematically as Var(X-Y) = Var(X) + Var(Y), where X and Y are independent variables.

What Does the Variance Sum Law State