The Following Output Is for a Second-Order Polynomial Regression Model

question 56

True/False

The following output is for a second-order polynomial regression model where the independent variables are x and x2 (x^2 in output). Some of the output has been omitted. Considering the above information, the model explains approximately 56.7 percent of the variation in the y variable.

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Definitions:

Independent Variable

A variable that an experimenter manipulates.

Control Variable

A variable that is kept constant during a scientific experiment to ensure that any changes in the outcome can be attributed to the variables being tested.

Confounding Variable

A variable that influences both the dependent variable and independent variable, causing a spurious association.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations of the independent variable.