The Percentage of Variation Explained $R ^ { 2 }$ Is the Square of the Correlation Between the Observed Y

question 72

True/False

The percentage of variation explained $R ^ { 2 }$
is the square of the correlation between the observed Y values and the fitted Y values.

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Definitions:

Hypothesis

A proposed explanation for a phenomenon, based on limited evidence, that serves as a starting point for further investigation.

Scientific Goal

An objective or target in research that aims to gain new knowledge, solve specific problems, or advance understanding in a scientific field.

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The ability to comprehend, grasp the meaning of something, or perceive the significance of information or situations.

Prediction

The act of forecasting future events or outcomes based on current or historical data or trends.