For a group of students,a researcher obtains their grades in high school and their grades in college and plot the intersection of these paired measures for each person on a graph as a single point.This graph is called a
A) normal curve.
B) correlation matrix.
C) frequency distribution.
D) scatter diagram.

Question

Quizplus · Accepted Answer

The graph described in the question, where paired measures are plotted as points, is a scatter diagram. It is used to visually analyze the relationship between two variables, in this case high school grades and college grades. The other choices, such as normal curve and frequency distribution, are not appropriate for this type of data analysis. A correlation matrix could be used to display the correlation coefficients between multiple pairs of variables, but it is not mentioned in the question that multiple variables were measured.

For a Group of Students,a Researcher Obtains Their Grades in High