On a Scattergram,the Regression Line

question 42

Multiple Choice

On a scattergram,the regression line

• A)is drawn parallel to the horizontal axis.
• B)is always perpendicular to the vertical axis.
• C)comes as close as possible to touching every score.
• D)touches at least half of the scores.

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Definitions:

Correlation Coefficient

A statistical index ranging from -1 to 1 that measures the degree of association between two variables.

Greek Symbols

Characters used in mathematics, science, and engineering that originate from the Greek alphabet, often representing constants, variables, and parameters.

Population Estimate

A value derived from a statistical model or sample that approximates the true characteristic of an entire population.

Positive Correlation

Positive correlation indicates that as one variable increases, the other variable tends to increase as well, demonstrating a direct relationship between the two variables.