Oh, yes. I am familiar with the test procedure. The point where I am stuck is the theoretical probability evaluation, which is then subtracted from the empirical

, squared and divided by theoretical probabilities. But, my difficulty is the evaluation of theoretical probabilities. I wanted to test for Poisson, and I am stuck on how to evaluate the Poisson probabilities.

All in all, I have

observed probabilities (I do have the absolute frequencies, as well). The first few entries have the following values:

. So, you can image, I suppose, the way this discrete distribution looks like. If not Poisson, then what other theoretical distribution would you recommend to consider?

Thanks!