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Thread: Binomial Probability

  1. #1
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    Binomial Probability

    I am trying to figure out how many possible combinations there are for a 10 question survey that has yes or no answers. I tried writing out a sample space:

    Y Y Y Y Y Y Y Y Y N
    Y Y Y Y Y Y Y Y N N
    Y Y Y Y Y Y Y N N N

    ...and quickly realized it would be very easy for me to miss an option or two.

    So I tried a combinations calculator. But I can't figure out how to make this a combinations problem. I *think* it's a binomial problem. I can figure out the probability of getting, say 1 YES ( 0.0546875 ) but that doesn't tell me how many different combinations there are.

    Thanks in advance@

  2. #2
    TS Contributor
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    Re: Binomial Probability

    Well, there are two possible outcomes per question and there are 10 questions. You just have to apply the mn-rule.

  3. The Following User Says Thank You to Englund For This Useful Post:

    Ker (01-31-2014)

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