# Thread: Question about Poisson results

1. ## Question about Poisson results

Hey I ran a poisson dist. on my data and found this comparison with results from poisson and the observed proportions:
The first values are the observed proportions, which sum up to 1
The second values are the poisson generated values.

1. 0.301886792
2. 0.320754717
3. 0.169811321
4. 0.122641509
5. 0.066037736
6. 0.018867925
SUM:
7. 1

1. 0.249875508
2. 0.320754717
3. 0.240279452
4. 0.111072577
5. 0.038508653
6. 0.010680702
SUM:
7. 0.996942361

Now I really want to know if this disparity in my results is okay because I was trying to test if poisson distribution is right for my data. please advise me if the observed data and the poisson data disparity is within reason.

Thanks,

Zenithwolf.

2. Originally Posted by zenithwolf
Hey I ran a poisson dist. on my data and found this comparison with results from poisson and the observed proportions:
The first values are the observed proportions, which sum up to 1
The second values are the poisson generated values.

1. 0.301886792
2. 0.320754717
3. 0.169811321
4. 0.122641509
5. 0.066037736
6. 0.018867925
SUM:
7. 1
1. 0.249875508
2. 0.320754717
3. 0.240279452
4. 0.111072577
5. 0.038508653
6. 0.010680702
SUM:
7. 0.996942361

Now I really want to know if this disparity in my results is okay because I was trying to test if poisson distribution is right for my data. please advise me if the observed data and the poisson data disparity is within reason.

Thanks,

Zenithwolf.
Try using Peason's chi-square test: Pearson's chi-square test - Wikipedia, the free encyclopedia