Hi JMP Community,
I need to estimate the probability of sampling different proportion of 100 subjects out of a 400 population belonging to 4 equally proportioned categories
I used a simple binomial distribution approach but I'm not sure that it is the correct method. Here is the specifics about my questions
Population: N = 400
Group A: 25%
Group B: 25%
Group C: 25%
==> what is the chance of having group A represented by less than 10 subject AND of having Group B represented by less than 10 patients in a sample of 100?
The main issue that the actual sample number for one group influences the other groups: how do I account for that?
Thanks for your help.