Find the Value of the Linear Correlation Coefficient R A) 0548
B) 0

question 160

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. $$\begin{array} { | c | c | c | c | c | c | c | c | c | c | } \hline \text { Test A } & 48 & 52 & 58 & 44 & 43 & 43 & 40 & 51 & 59 \\\hline \text { Test B } & 73 & 67 & 73 & 59 & 58 & 56 & 58 & 64 & 74 \\\hline\end{array}$$

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

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Definitions:

Diagram

A simplified drawing using lines and symbols to represent structures, systems, or processes, aiding in the explanation or analysis of data and concepts.

Payoff Matrix

A table that shows the potential outcomes of different strategies in a decision-making process, typically used in game theory to analyze interactions between multiple players.

Duopoly

A market structure where only two sellers compete directly against each other, offering similar goods or services.

Collude

When two or more entities, often companies, agree to work together secretly, especially in an illegal or deceitful way, to deceive, mislead, or defraud others of their legal rights, or to obtain an unfair advantage.