I the Strength of the Correlation Between Two Variables Depends

question 98

Multiple Choice

i. The strength of the correlation between two variables depends on the sign of the coefficient of correlation.
Ii) A coefficient of correlation r close to 0 (say, 0.08) shows that the relationship between two variables is quite weak.
Iii) The coefficient of determination is found by taking the square root of the coefficient of correlation.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements, but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) is a correct statement but not (i) or (iii).
• E) All statements are false

---

Definitions:

DRG System

Diagnosis-related group system, a method used by healthcare providers to classify hospitalization costs and determine how much to reimburse for care based on the diagnosis.

Health Care Costs

refer to the expenses associated with the prevention, diagnosis, treatment, and management of illness and the preservation of mental and physical well-being.

Affordable Care Act

A comprehensive health care reform law enacted in 2010 in the United States to increase health insurance quality and affordability.

Health Care Consumers

Individuals who seek, use, or are potential users of health care services, including patients and their families.