Which of the following represents a negative correlation?

A) The length of a person's arms over time

B) The water level in a bathtub as it drains over time

C) The amount of time you drive as compared to the distance traveled

D) The total cost of a pizza and the number of toppings you put on it

The answer is letter B, The water level in a bathtub as it drains over time.

Step-by-step explanation:

It is best to learn the meaning of "negative correlation" first.

Correlation - In Mathematics, "correlation" means a measure of the relationship between two variables.

Positive Correlation - when the values of the variables increase together.

Negative Correlation - when one value of a variable increases while the other variable's value decreases.

*The situation above is asking for a negative correlation, therefore the answer is letter B (The water level in a bathtub as it drains over time).

The variables are: water level and draining time

As the draining time increases, the water level in the bathtub decreases. This is clearly an example of a negative correlation.