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.

---

Definitions:

Ecosystem

A biological community of interacting organisms and their physical environment, functioning as a unit.

Environment

The surrounding conditions, influences, or forces which affect the life, behavior, and development of individuals or populations.

Wellness

A holistic state of well-being encompassing physical, mental, and social health, not merely the absence of disease or infirmity.

Nursing

A healthcare profession focused on the care of individuals, families, and communities so they may attain, maintain, or recover optimal health and quality of life.