A Research Study Found That the Multiple Correlation (R) of Three

question 77

Multiple Choice

A research study found that the multiple correlation (R) of three variables (SAT, HS rank, and HS GPA) with freshman college GPA was .60.The researcher would report that

• A) the average correlation of each of the variables with college GPA is .20.
• B) 60 percent of the variance in college GPA can be explained by the combined variables.
• C) 36 percent of the variance in college GPA can be explained by the three variables in combination.

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Definitions:

Marginal Benefits

The additional satisfaction or utility gained by consuming one more unit of a good or service.

Marginal Costs

A rephrased definition: The cost added by producing one additional unit of a product or service, reflecting the change in total cost that arises from an increase in production.

Marginal Cost

The additional cost incurred by producing one more unit of a product or service.

Marginal Benefit

The extra enjoyment or benefit derived from acquiring or generating another unit of a product or service.