Calculate the Correlation Coefficient, R, for the Data Below A)-0995
B)-0

question 91

Multiple Choice

Calculate the correlation coefficient, r, for the data below. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | c | } \mathrm { x } & 1 & 3 & 10 & 7 & 5 & 4 & 6 & 8 & 9 & 2 \\\hline \mathrm { y } & 1 & - 4 & - 16 & - 11 & - 7 & - 6 & - 9 & - 14 & - 15 & - 2\end{array}$$

• A)-0.995
• B)-0.671
• C)-0.778
• D)-0.885

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Definitions:

Mean

The average of a set of numbers, calculated by adding all the numbers together and dividing by the count of the numbers.

Variance

A measure of the spread between numbers in a data set, indicating how much the numbers differ from the average.

Payoff

The return or outcome received from an investment or decision, often used in context of financial transactions and game theory.

Risky Undertaking

An action or project that involves a high degree of uncertainty or danger regarding its outcome or success.