The Paired Data Below Consists of Test Scores and Hours $\mathrm { y } = 44.8447 + 3.52427 \mathrm { x }$

question 57

Multiple Choice

The paired data below consists of test scores and hours of preparation for 5 randomly selected students. The equation of the regression line is $\mathrm { y } = 44.8447 + 3.52427 \mathrm { x }$ . Find the explained variation.
$\begin{array}{c|rrrrr}x \text { Hours of preparation } & 5 & 2 & 9 & 6 & 10 \\\hline y \text { Test of score } & 64 & 48 & 72 & 73 & 80\end{array}$

• A) \(498.103\)
• B) \(511.724\)
• C) \(87.4757\)
• D) \(599.2\)

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Definitions:

Participant

An individual who takes part in an activity or study, often used in the context of psychological experiments or surveys.

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The pineal gland is a small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep patterns.

Mind-Body Interaction

The relationship and influence between mental processes and the physical state of the body.

Descartes

A French philosopher, mathematician, and scientist, known for his statement "Cogito, ergo sum" (I think, therefore I am).