The Relationship Between Two Quantities X and Y Is Examined

question 21

Multiple Choice

The relationship between two quantities x and y is examined.The relationship appears to be fairly linear.A linear model is considered,and the regression analysis is as follows: Dependent variable: y
R-squared = 87.9%
VARIABLE COEFFICIENT
Intercept 37.74
X -9.97
What does the slope say about the relationship between x and y?

• A)For each increase in x of 1,the corresponding average decrease in y is 9.97.
• B)For each increase in x of 1,the corresponding average increase in y is 37.74.
• C)For each increase in x of 1,the corresponding average decrease in y is 37.74.
• D)For each increase in x of 1,the corresponding average increase in y is 9.97.
• E)For each increase in x of 1,y decreases by an average of 87.9%.

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Definitions:

Neurotransmitters

Chemical messengers that transmit signals across synapses from one neuron to another, influencing numerous bodily and mental functions.

Synaptic Vesicles

Small sacs within a presynaptic neuron that store neurotransmitters, which are released into the synaptic cleft to transmit signals to a postsynaptic cell.

Receptor Sites

Specific locations on the surface of a cell or within a cell where molecules, such as neurotransmitters or hormones, can bind to initiate a cellular response.

Potassium Ions

Positively charged ions (K+) that are vital for various physiological processes, including nerve signal transmission and muscle contraction.