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:

Formation

The process of being formed or the structure that is formed as a result of certain conditions or processes.

Without

Lacking or in the absence of.

Lordosis

A condition characterized by an excessive inward curvature of the spine, often in the lumbar region, leading to a pronounced "swayback" appearance.

Scoliosis

A condition characterized by an abnormal lateral curvature of the spine.