(Solved): 3. On a scale designed to measure levels of depression, two college classes scored as follows. Ass ...

3. On a scale designed to measure levels of depression, two college classes scored as follows. Assume that higher scores indicate higher depressive symptoms: Compare the variability of depression among members of the two classes by calculating for each class (a) the range and (b) the standard deviation. Which class has greater variability of depression scores? (Assume that this is a sample of students from the class.) Be sure to create the necessary columns in the frequency table in your answer.