In Bivariate Regression,which Statement Is True Concerning the Coefficient of Determination,r²

question 87

Multiple Choice

In bivariate regression,which statement is true concerning the coefficient of determination,r²?

• A) r² varies between 0 and 1.
• B) r² signifies the proportion of the total variation in Y accounted for by the variation in X.
• C) r² is the square of the simple correlation coefficient obtained by correlating the two variables.
• D) All are correct.

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Definitions:

Spontaneous Recovery

The reappearance of a learned response after extinction has occurred and time has passed, in classical conditioning.

Time Lapse

A photographic technique that captures a sequence of frames at set intervals to show changes that take place slowly over time.

Generalization

The process of forming general statements or conclusions from specific instances.

Extinguished CR

In classical conditioning, this refers to the gradual weakening and eventual disappearance of the conditioned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus.