Exercise 15 Page 367

Consider the given data set.

We will analyze the data and create a display that best represents the data. Since we have grades, it would be nice to have them in order and see the distribution of the data. Therefore, we can use a stem-and-leaf plot to display this quantitative data. The stems will show tens and the leaves will show units. Since the data is between $52$ and $100,$ the stems will be $5,$ $6,$ $7,$ $8,$ $9,$ and $10.$ Let's set the key to be $5|2=52.$

Please note that this is only one possible way to represent the data — there are many other possible ways to do it.