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| Math Central | Quandaries & Queries |
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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,
Penny
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