Which of the Following Statements Concerning the Linear Correlation Coefficient

question 48

Multiple Choice

Which of the following statements concerning the linear correlation coefficient are true?_ I: If the linear correlation coefficient for two variables is zero, then there is no relationship
Between the variables.
II: If the slope of the regression line is negative, then the linear correlation coefficient is
Negative.
III: The value of the linear correlation coefficient always lies between −1 and 1.
IV: A linear correlation coefficient of 0.62 suggests a stronger linear relationship than a linear
Correlation coefficient of -0.82.

• A)I and IV
• B)III and IV
• C)II and III
• D)I and II

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Definitions:

Antidepressants

Medications designed to improve symptoms of depression by altering chemical balances in the brain.

Synaptic Reuptake

The presynaptic neuron’s process of reabsorbing its own neurotransmitters after signaling so that they can be released again the next time the neuron fires.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the brain, influencing various bodily functions and behaviors.

Synaptic Vesicles

Small sacs in a synapse that release neurotransmitters into the synaptic cleft to transmit neural signals between neurons.