Question

A correlation of r = 0.85 is found between weekly sales of firewood and cough drops over a 1-year period. Which of the following is a correct interpretation of this correlation value?
a. There is a pretty strong positive linear relationship between sales of firewood and cough drops.
b. Temperature is a possible lurking variable that is behind this relationship.
c. Fire must be the cause of coughing.

Answer 1

Answer:

A) There is a pretty strong positive linear relationship between sales of firewood and cough drops.

Explanation:

Correlation coefficient: It is used to analyze the relationship between two variables, the greater it is the stronger the relationship will be.

• Sales of firewood affects cough drops, they have a direct and strong positive relationship.