THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 119

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A professor of statistics is interested in studying the relationship between the number of hours graduate students spent studying for his comprehensive final exam and the exam score.The results of the regression analysis of hours studied on exam scores are presented below.
-What does a coefficient of correlation of 0.80 indicate?

• A)Sixteen percent of the relationship between the dependent and independent variables are linear.
• B)Eight percent of the variation in the independent variable is explained by the dependent variable.
• C)Sixty four percent of the variation in the dependent variable is explained by the independent variable
• D)Eighty percent of the variation in the independent variable is explained by the dependent variable.

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Definitions:

Blood Pressure

The force exerted by circulating blood on the walls of the body's arteries, a critical vital sign indicating the health of the cardiovascular system.

Exhaustion

A state of extreme physical or mental fatigue, often resulting from stress or lack of sleep.

Cardiac Arrest

A sudden cessation of heart function, leading to a loss of blood circulation and requiring immediate medical intervention.

Secreted

Refers to the process of producing and releasing substances from a cell or gland in the body.