A line or curve superimposed on a scatterplot to quantify an apparent relationship is known as a(n):
A) average
B) trend line
C) data point
D) positive variable
E) slope

Question

Quizplus · Accepted Answer

A trend line is a line superimposed on a scatterplot to quantify an apparent relationship between two variables. Option A, average, is a measure of central tendency and not related to a trend line. Option C, data point, is an individual observation in the scatterplot, not related to a trend line. Option D, positive variable, refers to a variable that increases in value as another variable increases, but it is not related to a trend line. Option E, slope, refers to the steepness of the trend line and is related to a trend line, but it is not the best choice as it does not describe the purpose of the line on the scatterplot.

A Line or Curve Superimposed on a Scatterplot to Quantify