1. Put an event counter in the first column.

2. Put your data in the second column.

3. Calculate the interarrival times in the third column.

4. Use

**Copy**and

**Paste Special Values**to copy the IntArr values in a new columm.

5. Sort this column in descending order.

6. Calculate the Average Interarrival Time for your data.

7. Generate an Ideal Poisson distribution based on the measured average.

8. Plot the Sorted and Ideal distributions on a log-log scatter plot.

You should get a straight line, as in the attached example.

Poisson-for-ExEx.pdf