An important reason for making a scattergram is that it
A) provides a test of the statistical significance of the obtained correlation coefficient.
B) provides a measure of the confidence limits for the obtained correlation coefficient.
C) is helpful for detecting nonlinear relationships.
D) estimates the amount of shrinkage in a correlation coefficient when cross-validated.

Question

Quizplus · Accepted Answer

Scattergrams (scatter plots) are useful for visually identifying patterns in data, including nonlinear relationships between variables, which might not be apparent through correlation coefficients alone. They allow researchers to observe the distribution and relationship of data points, helping to detect if the relationship is linear, curvilinear, or if there's no apparent relationship.

An Important Reason for Making a Scattergram Is That It