Exhibit 12-9
a Regression and Correlation Analysis Resulted in the Following

question 83

Multiple Choice

Exhibit 12-9
A regression and correlation analysis resulted in the following information regarding a dependent variable y) and an independent variable x) .
$\begin{array}{ll}\Sigma \mathrm{X}=90 & \Sigma \mathrm{Y}-{\bar{\mathrm{Y}}) X}-\bar{X}) =466 \\\Sigma \mathrm{Y}=170 & \Sigma \mathrm{Y}-\overline{\mathrm{Y}}) ^{2}=1434 \\\mathrm{n}=10\\\mathrm{SSE}=505.98 & \Sigma \mathrm{X}-\bar{X}) ^{2}=234 \end{array}$

-Refer to Exhibit 12-9. The coefficient of determination equals

• A) 0.6472
• B) -0.6472
• C) 0
• D) 1

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Definitions:

Cognitive Development

The study of how thinking, problem solving, and intelligence evolve as people grow from infancy through adulthood.

Piaget's Theory

A developmental theory by Jean Piaget that outlines how children's cognitive abilities progress through four stages from infancy to adolescence.

Abstract Reasoning

The ability to analyze information, detect patterns and relationships, and solve problems on a complex, abstract level.

Moral Development

The growth of an individual's understanding of the principles and values that guide responsible behavior.