Which of the Following Statements Is True Regarding the Sources

question 14

Multiple Choice

Which of the following statements is true regarding the sources of variation present in an analysis of regression?

• A) Regression variation measures variability in X, whereas residual variation measures variability in Y.
• B) The closer that data points fall to the regression line, the more the variance in Y will be attributed to regression variation.
• C) There are three sources of variation in an analysis of regression: regression variance, residual variance, and error variance.
• D) When most of the variability in Y is associated with residual variation, then X predicts Y.

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Definitions:

Macroevolution

Macroevolution is evolution occurring above the species level, including the origination, diversification, and extinction of species over long periods of evolutionary time.

Non-Avian Dinosaurs

The group of dinosaurs that did not evolve into birds and became extinct approximately 66 million years ago.

Mass Extinctions

Events in Earth's history when a significant, widespread and rapid decrease in the biodiversity of organisms occurs, often due to drastic environmental changes.

Mass Extinction

A significant and widespread event in which a substantial proportion of Earth's species die out in a relatively short geological period.