Sometimes a scatter plot will show a curvilinear relationship between two variables.

What is an example of curvilinear relationship?

An example of a curvilinear relationship would be staff cheerfulness and customer satisfaction. The more cheerful a service staff is, the higher the customer satisfaction, but only up to a certain point.

What is a curvilinear relationship?

A curvilinear relationship is a type of relationship between two variables that has a pattern of correspondence or association between the two variables that change as the values of the variables change (increase or decrease).