If the Standard Deviation of X Is 15,the Covariance of X

question 47

True/False

If the standard deviation of X is 15,the covariance of X and Y is 94.5,and the correlation is 0.90,then the variance of Y is 7.0.

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Definitions:

Unit Contribution Margin

The difference between the selling price per unit and the variable cost per unit. It measures how much each unit sold contributes to fixed costs and profit.

Break-Even Point

The level of business operations at which revenues and expired costs are equal.

Cost-Volume-Profit Chart

A chart that graphically shows sales, costs, and the related profit or loss for various levels of units sold.

Total Costs

The sum of all costs associated with the production or acquisition of goods and services, including variable and fixed costs.