If X and Y Are Independent Random Variables,which of the Following

question 45

Multiple Choice

If X and Y are independent random variables,which of the following identities is false?

• A)COV(X,Y)= 1
• B)E(X + Y)= E(X)+ E(Y)
• C)V(X + Y)= V(X)+ V(Y)
• D)All of these choices are true.

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Definitions:

Direct Labor-Hours

An accounting term indicating the hours of work performed by employees directly involved in the creation of goods or services.

Variable Manufacturing Overhead

Costs that fluctuate with production volume, such as indirect materials or utilities, associated specifically with the manufacturing process.

Unit Product Cost

The total cost associated with manufacturing a single unit of product, including direct materials, labor, and overhead expenses.

Predetermined Overhead Rate

A rate used to apply overhead costs to products, calculated before the accounting period begins based on estimated costs and activity levels.