Use the following to answer questions :

-For the figure above, which statement concerning the relationship between the rate of traffic accidents and umbrella sales is correct?
A) The letter x represents a confounding variable.
B) The letter z represents a confounding variable.
C) The letters x and y represent confounding variables.
D) The letters x, y, and z represent confounding variables.

Question

Use the following to answer questions :
 
-For the figure above, which statement concerning the relationship between the rate of traffic accidents and umbrella sales is correct?
A) The letter x represents a confounding variable. 
B) The letter z represents a confounding variable. 
C) The letters x and y represent confounding variables. 
D) The letters x, y, and z represent confounding variables.

Quizplus · Accepted Answer

The letter z represents a confounding variable because it is an external factor that influences both the rate of traffic accidents and umbrella sales, suggesting a correlation between the two that does not necessarily imply causation.

Use the Following to Answer Questions