Exhibit 2-1

question 7

Multiple Choice

Exhibit 2-1.An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following shows the results from the survey: Refer to Exhibit 2-1.A rating of Average or Above Average accounted for what number of responses to the survey?

• A)3
• B)7
• C)8
• D)10

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Definitions:

Y-Intercept

The point where the line of a graph intersects the Y-axis, representing the value of the dependent variable when all independent variables are zero.

Linear Regression Equation

A mathematical formula used to predict a variable's value based on its linear relationship with one or more other variables.

Number of Arrests

A count metric often used in criminal justice research to quantify instances of being detained by law enforcement.

Drivers' Average Speed

Refers to the mean speed at which drivers operate their vehicles over a certain stretch of road or within a specific area.