What Does the Variance Sum Law State

question 7

Multiple Choice

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.

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