The histogram below is for data on Old Faithful. The observations are the duration (in minutes) for eruptions of the Old Faithful geyser in Yellowstone National Park. "Old Faithful" has a rather distinct eruption pattern.

INSTRUCTIONS

You should interactively change the bin width by clicking on and then dragging the arrow underneath the bin width scale.

1. Try large bin widths, then try small ones.

2. Which bin width (large or small) do you think provides the best picture of the underlying data?

And always give credit where credit is due:

by R. Webster West, Dept. of Statistics, Univ. of South Carolina west@stat.sc.edu