Here are some data from a study. Put into words what the following statements tell us:
-Another class of 50 also had a mean exam grade of 78.5. However, the standard deviation for that class was 8.5, compared to the first class which had a standard deviation of 2.5. What do these standard deviations tell us?

Question

Quizplus · Accepted Answer

The Answer is They tell us that there is a wider dispersion of scores in the second class compared with the first one, where the scores tend to cluster closer to the mean of 78.5.

Here Are Some Data from a Study