Understand the relationship between the correlation and the regression line.
-Suppose the correlation, r, between two variables x and y is -0.44. What would you
Predict about a y value if the x value is 2 standard deviations above its mean?
A) It will be .88 standard deviations below its mean.
B) It will be .88 standard deviations above its mean.
C) It will be 2 standard deviations below its mean.
D) It will be .44 standard deviations below its mean.
E) It will be .44 standard deviations above its mean.

Question

Quizplus · Accepted Answer

The correlation coefficient, r, indicates the strength and direction of a linear relationship. If x is 2 standard deviations above its mean, y will be 2 * -0.44 = -0.88 standard deviations from its mean, indicating it will be below the mean.

Understand the Relationship Between the Correlation and the Regression Line