# Graphing

## Histograms

### Answers

- The result of dividing the range of scores by the number of classes.

Bin width is another name for the width of each class interval. - According to Sturges' rule, there should be 13 intervals because the base 2 logarithm of 4096 (which is close to 4000) is 12.

Thirteen intervals. Sturges' rule sets the number of intervals as close as possible to 1 + Log2(N), where Log2(N) is the base 2 log of the number of observations.