If Cov(X,Y)= - 16

question 31

Multiple Choice

If Cov(X,Y) = - 16.0,variance of X = 25,variance of Y = 16 then the sample coefficient of correlation r is

• A)+ 1.60
• B)- 1.60
• C)- 0.80
• D)+ 0.80
• E)Cannot be determined from the given information

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Definitions:

Variable Utilities Cost

The portion of utility expenses that varies with the level of business activity or production volume.

High-Low Method

A technique in cost accounting to estimate fixed and variable costs based on the highest and lowest levels of activity.

Cost-Volume-Profit Analysis

An accounting method used to estimate how changes in costs, sales volume, and price affect a company's profit.

Contribution Margin Ratio

A financial metric calculating the difference between a product's price and variable costs as a percentage of the product's price.