Which of the following statistical measures is most helpful for indicating the extent to which intelligence test scores can be used to predict grades in school?

Question

Quizplus · Accepted Answer

The correlation coefficient measures the strength and direction of the relationship between two variables. In this case, it would measure the relationship between intelligence test scores and grades in school, indicating the extent to which one can predict the other. The mean, standard deviation, and range do not provide information about the relationship between two variables.

Which of the Following Statistical Measures Is Most Helpful for Indicating