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Thread: Random Samples

  1. 02-18-2010 09:44 AM #1
    roda
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    Random Samples



    I cannot figure out how we come to the answer of 3,921,225 for this question. Out of a 100 numbers I need to take a random sample of four numbers. How many different random samples of four are possible?
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  2. 02-18-2010 01:02 PM #2
    BGM
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    100c4 = (100*99*98*97)/(4*3*2*1) = 25*33*49*97 = 3921225
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