Find the Value of the Linear Correlation Coefficient R A) -0071
B) 0

question 11

Multiple Choice

Find the value of the linear correlation coefficient r. The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands) :
$\begin{array} { l | r | r | r | r | r | r | r | r } \text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \\\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73\end{array}$

• A) -0.071
• B) 0.708
• C) 0.235
• D) 0.246

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Definitions:

Ebbinghaus

Refers to Hermann Ebbinghaus, a German psychologist known for his pioneering work on memory and the forgetting curve.

Rate of Forgetting

The pace at which information is lost over time from memory, often described by the forgetting curve.

Auditory Sensation

The perceptual experience of sound, which occurs when sound waves are converted into electrical signals processed by the brain.

Sensory Registers

The initial processing systems that store sensory information for very short periods of time, allowing it to be perceived.