The Point-Biserial Correlation Coefficient Is a Measure of the Direction

question 13

Multiple Choice

The point-biserial correlation coefficient is a measure of the direction and strength of the linear relationship between two variables,where ______.

• A) one is continuous, and one is dichotomous
• B) both variables are on an ordinal scale
• C) one is at interval level or higher and one is ordinal
• D) both variables are on a nominal scale

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Substances used in farming to enhance growth and productivity, including fertilizers, herbicides, and pesticides.

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