Charts for counts

Use this tool for drawing charts of road casualty numbers or other counts of events
(technically known as Poisson distribution data).
Enter actual counts - not averages or proportions.

Unsure what to do? Try these examples:
1. Enter the data in the boxes:
If more than one, separate them by commas
Label(s) (optional):
Separate by commas if more than one
Chart title (optional):

2. Choose options:

Chart style:

Title font size:

Bar/line colour:

3. After inputting or changing data, select 'Draw / refresh chart':

4. Right-click on the chart to save it to your PC.
The values and the formula used for the 95% confidence intervals are taken from Statistics with Confidence (2000) BMJ Books