Which Statement About the Correlation Coefficient,r,is True

question 89

Multiple Choice

Which statement about the correlation coefficient,r,is true?

• A)The calculation of r assumes that X and Y are metric variables whose distributions have the same shape.
• B)The correlation coefficient computed for a population is denoted by ρ(rho).
• C)Data obtained by using rating scales with a small number of categories tends to deflate r.
• D)All of the statements are true.

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Definitions:

Scarcity

Fundamental concept of economics that indicates that there is less of a good freely available than people would like.

Production Possibilities Curve

A graphical representation that shows the maximum combination of goods or services that can be produced with a fixed amount of resources.

Efficiently

Pertains to achieving maximum productivity with minimal wasted effort or expense.

Studying

The act of dedicating time and attention to acquiring knowledge or understanding through reading, practice, or instruction.