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Math Help - Need Help With Probability Problem

  1. #1
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    Need Help With Probability Problem

    The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. Among the last 11 participants there have been only 2 women. If participants are picked randomly, what is the probability of getting 2 or fewer women when 11 people are picked?
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  2. #2
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    Quote Originally Posted by krunch007 View Post
    The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. Among the last 11 participants there have been only 2 women. If participants are picked randomly, what is the probability of getting 2 or fewer women when 11 people are picked?
    Let X be the random variable number of women picked.

    X ~ Binomial(n = 11, p = 1/2) (since pool is large p can be assumed to stay the same)

    Calculate \Pr(X \leq 2).
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  3. #3
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    Smile Thanks....you were right

    [quote=mr fantastic;132098]Let X be the random variable number of women picked.

    X ~ Binomial(n = 11, p = 1/2) (since pool is large p can be assumed to stay the same)

    Calculate \Pr(X \leq 2).[/quote

    Thanks Mr. Fantastic....I was a little confused as to why u used 1/2 for p..but now I get it....

    thanks again....
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