■ Σigma Freud and Descriptive Statistics
There are some simple steps for creating class intervals on the way to creating
a frequency distribution. Here are six general rules:
1. Determine the range.
2. Decide on the number of class intervals.
3. Decide on the size of the class interval.
4. Decide the starting point for the first class.
5. Create the class intervals.
6. Put the data into the class intervals
