Find the Value of the Linear Correlation Coefficient R A) -0284
B) 0

question 52

Multiple Choice

Find the value of the linear correlation coefficient r.
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer programming students. The results are recorded in the table below. $$\begin{array} { c c } \text { Number of hours spent in lab } & \text { Grade (percent) } \\\hline 10 & 96 \\11 & 51 \\16 & 62 \\9 & 58 \\7 & 89 \\15 & 81 \\16 & 46 \\10 & 51\end{array}$$

• A) -0.284
• B) 0.462
• C) -0.335
• D) 0.017

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Definitions:

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a given price over a specified period of time.

Inelastic Demands

Describes a situation where the demand for a good or service is relatively unresponsive to changes in price, with a percentage change in quantity demanded that is less than the percentage change in price.

Elastic Demands

This refers to the sensitivity of the quantity demanded of a good to a change in its price, where a small price change leads to a larger change in quantity demanded.

Elastic Demands

A situation where the demand for a good or service significantly changes in response to changes in its price.