On Average,the Intelligence Test Scores of the Dingbats Are Much

question 30

Multiple Choice

On average,the intelligence test scores of the Dingbats are much higher than those of the Dodos.The difference in the average test scores of the two groups might be a product of

• A) genetic differences between two groups with similar environments.
• B) environmental differences between two groups with similar genetics.
• C) genetic and environmental differences between the two groups.
• D) any of these things.

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Definitions:

Intercept Term

The intercept term in a regression model is the value of the dependent variable when all independent variables are equal to zero.

Coefficient

A steady or unvarying number that precedes and acts as a multiplier for the variable in algebraic expressions.

Predictor Variables

Variables in statistical models that are used to predict outcomes of interest.

Second-order Polynomial

A polynomial of degree two, characterized by a quadratic equation that includes squared terms as its highest order.