Find the Value of the Linear Correlation Coefficient R
-Two

question 121

Multiple Choice

Find the value of the linear correlation coefficient r
-Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. $$\begin{array} { c | l | l | l | l | l | l | l | l | l } \text { Test A } & 48 & 52 & 58 & 44 & 43 & 43 & 40 & 51 & 59 \\\hline \text { Test B } & 73 & 67 & 73 & 59 & 58 & 56 & 58 & 64 & 74\end{array}$$

• A)0.548
• B)0.109
• C)0.714
• D)0.867

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Definitions:

Average Cost

The total cost of production divided by the quantity produced, alternatively known as unit cost.

Demand Schedule

A table that shows the quantity of a good or service that consumers are willing and able to purchase at different prices.

Rent-Seeking Activity

Rent-Seeking Activity involves individuals or entities attempting to obtain economic rent by manipulating the social or political environment in which economic activities occur, rather than creating new wealth.

Demand Schedule

A table or graph showing the quantity of a good that buyers wish to purchase at various prices.