For the Data Below, Determine the Value of the Linear $\mathrm { r }$

question 53

Multiple Choice

For the data below, determine the value of the linear correlation coefficient $\mathrm { r }$ between $\mathrm { y }$ and $\mathrm { x } ^ { 2 }$ .
$$\begin{array} { c | c c c c c } \mathrm { x } & 1.2 & 2.7 & 4.4 & 6.6 & 9.5 \\\hline \mathrm { y } & 1.6 & 4.7 & 9.9 & 24.5 & 39.0\end{array}$$

• A) \(0.873\)
• B) \(0.990\)
• C) \(0.985\)
• D) \(0.913\)

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Definitions:

Service Departments

Units within an organization that support other departments but do not directly contribute to revenue generation, such as IT and HR.

Profit Margin

A financial ratio indicating the percentage of revenue that remains as profit after accounting for the cost of goods sold and other expenses; a measure of profitability.

Investment Turnover

A financial ratio that measures the efficiency of a company in generating sales from its investments in securities or fixed assets.

Return On Investment

A performance measure used to evaluate the efficiency or profitability of an investment or compare the efficiency of several different investments.