D 60 ANSWER: C Exhibit 2-4
a Sample of 15

question 48

Multiple Choice

d. 60 ANSWER: c Exhibit 2-4
A sample of 15 children shows their favorite restaurant:
$\begin{array}{|l|l|l|}\hline \text { McDonalds } & \text { Luppi's } & \text { Mellow Mushroom } \\\hline \text { Friday's } & \text { McDonalds } & \text { McDonalds } \\\hline \text { Pizza Hut } & \text { Taco Bell } & \text { McDonalds } \\\hline \text { Mellow Mushroom } & \text { Luppi's } & \text { Pizza Hut } \\\hline \text { McDonalds } & \text { Friday's } & \text { McDonalds }\\\hline\end{array}$
-Refer to Exhibit 2-4. Determine the percent frequency for McDonalds.

• A) 10%
• B) 27%
• C) 2%
• D) 40%

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Definitions:

Sum of Squares

A statistical measure used to describe the dispersion of data points. It calculates the sum of the squared differences from the mean.

Simple Linear Regression

A technique in statistics that estimates the association between an independent variable and a dependent variable using a straight line.

Negatively Related

A term describing the relationship between two variables where an increase in one variable is associated with a decrease in the other.

Correlation Coefficient

A statistical measure that calculates the strength of the relationship between two variables and their direction (positive or negative).