All of the following variables, EXCEPT for ________, would likely show a negative correlation.
A) average income and the incidence of dental disease
B) adult shoe size and IQ scores
C) the value of a car and the age of a car
D) hours spent watching TV and grade-point average

Question

All of the following variables, EXCEPT for ________, would likely show a negative correlation.
A) average income and the incidence of dental disease
B) adult shoe size and IQ scores 
C) the value of a car and the age of a car
D) hours spent watching TV and grade-point average

Quizplus · Accepted Answer

It is unlikely that there is a strong relationship between adult shoe size and IQ scores, so there would likely be no correlation. However, the other variables listed all have a plausible connection where as one variable increases, the other would decrease, resulting in a negative correlation.

All of the Following Variables, EXCEPT for ________, Would Likely