A Normal Probability Distribution

question 83

Multiple Choice

A normal probability distribution

• A) can have mean of any numerical value.
• B) needs to have a mean of 0.
• C) has a standard deviation of 0.
• D) must have a standard deviation of 1 and a mean of 0.

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Definitions:

Y-intercept

The point where the graph of a function or relation intersects the y-axis of the coordinate system.

Regression

A statistical method that analyzes the relationship between a dependent variable and one or more independent variables.

Criterion Variable

The dependent variable in statistical modeling, whose variation is being studied and predicted.

F-ratio

A statistical test ratio used in the analysis of variance (ANOVA) to determine if the variances between means are significant, typically comparing the variance between groups to the variance within groups.