college

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Four hundred people apply for three jobs. 130 of the applicants are women.
(a) If three persons are selected at random, what is the probability that all are women?
(b) If three persons are selected at random, what is the probability that two are women?
(c)If three persons are selected at random, what is the probability that one is a woman?
(d) If three persons are selected at random, what is the probability that none is a woman?

  • college probability -

    Your school subject is NOT college.

  • college -

    well can you please help me?

  • college probabilities -

    There is no replacement.

    (a) 130/400 * 129/399 * 128/398

    This should give you an idea of how to proceed with the remaining problems.

  • college -

    I have this very question and I am in my last year of college taking math as my last class after 4 years of college because it is challenging for me so that statement is incorrect it is a COLLEGE question!

  • college -

    Shut. Up.

  • college -

    The SUBJECT shouldn't be "college", it should be 'MATH'. How does kay expect to get help when when she doesn't say what subject she needs help in?

    Tanya you're slow..

  • college -

    a) P(choosing 3 women)= 130C3/400C3=0.03
    b) P(choosing 2 women)=(130C2)(270C1)\400C3

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