1. What is the first step in constructing a graph of statistical data?
2. Draw the outline of a histogram for each of the following descriptions.
a. A set of quiz scores where the quiz was very easy
b. The last digit of the winning lottery numbers for a year
c. The average mass of a healthy adult measured monthly over the course of two years
3. When are ogives most useful to decision-makers?
4. What is the key advantage of stem-and-leaf plots over histograms?