Using the Following Data, What Is the Pearson Product-Moment R

question 50

Multiple Choice

Using the following data, what is the Pearson product-moment r between X and Y? $\begin{array}{llllll}\text { Subject } & X & Y & X^{2} & Y^{2} & X Y \\1 & 8 & 7 & 64 & 49 & 56 \\2 & 9 & 10 & 81 & 100 & 90 \\3 & 3 & 5 & 9 & 25 & 15 \\4 & 4 & 5 & 16 & 25 & 20 \\5 & \underline{1} & \underline{3} & \underline{1} & \underline{9} & \underline{3} \\\Sigma & 25 & 30 & 171 & 208 & 184\end{array}$

• A) .75
• B) .78
• C) .95
• D) .98

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Definitions:

Channel Richness

The degree to which a communication channel effectively conveys and facilitates understanding of complex information.

Impersonal

Lacking personal emotion or warmth; referring to interactions or processes that are formal, distant, or objective.

Mixed Message

What results when words communicate one message while actions, body language, or appearance communicate something else.

Body Language

Non-verbal communication methods through physical behaviors, such as gestures, posture, and facial expressions.