Which of the following statistical measures is most helpful for indicating the extent to which high school grades predict college or university grades?
A) an experiment
B) a random sample
C) a correlation coefficient
D) an independent variable

Question

Quizplus · Accepted Answer

A correlation coefficient is the statistical measure that indicates the strength and direction of the relationship between two variables. In this case, the high school grades and college or university grades are the two variables, and a correlation coefficient can help determine whether there is a positive or negative correlation between them, and the strength of that relationship. This is the most helpful statistical measure for indicating the extent to which high school grades predict college or university grades. An experiment, random sample, and independent variable are not appropriate statistical measures for this purpose.

Which of the Following Statistical Measures Is Most Helpful for Indicating