Finite Math

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Eight white socks and four red socks are in a drawer. If two socks are selected at random, what is the probability that both socks are the same color?

  • Finite Math -

    could be either RR or WW

    prob of RR = 4/12(3/11) = 12/132
    prob of WW = 8/12(7/11) = 56/132

    prob of 2 "like" socks = 68/132 = 17/33

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