Math CentralQuandaries & Queries


Question from Sandiso:

What is the probability associated with each possible random sample of size 4 from the population consisting of these nine balls

Hi Sandiso,

There are 9 choose 4 ways to select a sample of size 4 from a population of size 9. 9 choose 4 is 126 so there are 126 possible combinations of 4 things taken from 9 things.

I hope this helps,

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