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5 May, 07:40

Your sock drawer has 3 pairs of black socks, 4 pairs of brown socks, 1 pair of yellow socks and 5 pairs of blue socks. you reach into the drawer in the dark and randomly pick out 2 pairs for your business trip. what is the probability your pick out in this order. 2 black pairs?

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  1. 5 May, 09:22
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    All socks together: 13

    Black socks: 3

    Probability to pick out black socks: 3/13

    After one pick out (You picked out a pair of black socks):

    Probability to pick out black socks: 2/12

    Multiply them:

    2/12 * 3/13 = 1/26 ≈ 0,038
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