To Standardize a Variable You

question 70

Multiple Choice

To standardize a variable you

• A)subtract its mean and divide by its standard deviation.
• B)integrate the area below two points under the normal distribution.
• C)add and subtract 1.96 times the standard deviation to the variable.
• D)divide it by its standard deviation, as long as its mean is 1.

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Definitions:

Coefficient of Determination

A statistical measure represented as r^2 that shows the proportion of variance in the dependent variable that is predictable from the independent variable(s).

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution without violating given constraints.

Regression Model

A mathematical representation of the relationship between a dependent variable and one or more independent variables.

Independent Variable

A variable that is manipulated or categorized to observe its effect on a dependent variable, without being affected by other variables in the experiment.