Find the Value of the Linear Correlation Coefficient R
-A

question 39

Multiple Choice

Find the value of the linear correlation coefficient r
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. $\begin{array}{cc}\text { Number of hours spent in lab } & \text { Grade (percent) } \\\hline 10 & 96 \\11 & 51 \\16 & 62 \\9 & 58 \\7 & 89 \\15 & 81 \\16 & 46 \\10 & 51\end{array}$

• A) \(- 0.335\)
• B) \(- 0.284\)
• C) \(0.462\)
• D) \(0.017\)

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Definitions:

Naturalistic Observation

A research method in which subjects are observed in their natural environment without any manipulation by the observer.

Selective Attention

The process by which a person focuses on one particular stimulus while ignoring other stimuli, demonstrating the brain's ability to prioritize sensory input.

Sensory Information

Data received by the sense organs (e.g., eyes, ears, skin) that is then interpreted by the brain.

Cocktail Party Effect

The brain's ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, much like how a partygoer can focus on a single conversation in a noisy room.