An Object Moving at 30 M/s Has an Acceleration of -2.0

question 25

Multiple Choice

An object moving at 30 m/s has an acceleration of -2.0 m/s/hr. Its speed

• A) increases very quickly.
• B) increases very slowly.
• C) decreases very slowly.
• D) decreases very quickly.

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Definitions:

Goodness of Fit

A statistical test used to determine how well observed data match the expected data from a model.

Estimated Regression Equation

The estimate of the regression equation developed from sample data by using the least squares method. For simple linear regression, the estimated regression equation is yˆ = b0 + b1x.

Multicollinearity

A statistical phenomenon in which two or more predictor variables in a multiple regression model are highly correlated, making it difficult to distinguish their individual effects on the dependent variable.

Independent Variables

Variables in an experiment or statistical model that are manipulated or categorized to determine their effect on dependent variables.