1. Organizing and Displaying Data
Chapter 2
Organizing and Displaying Data

2. A rank order distribution presents a quick view of group variability.

3. Larger data sets can be organized into a simple frequency distribution.

4. A grouped frequency should be divided into approx. 15 groups.
Interval = range/15

7. A histogram is constructed from a grouped frequency distribution

8. A frequency polygon is a line graph of the scores plotted the frequency.

9. Cumulative Frequency: number of scores below a given score.

10. A cumulative frequency graph shows the number of scores at or below a given score.

11. The normal curve is symmetrical, with mean, median & mode at the same score.