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  1. H

    Binomial Probably Variant help

    Ok so what i'm thinking here is that the P(X=3) = [(2 choose 2) X (7 choose 2) ] / 10! Am I on the right track here?
  2. H

    Help verifying a CDF is actually a CDF

    Hello All, First post here so thank you for reading and hopefully helping out! I'm feeling stumped with this first question and was hoping someone could help point me in the right direction. I understand, at least I think I do, how to to find the actual probabilities for part b) i, ii and iii...