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11 beads,7 red and 4 white.2 beads are picked at random.probability of one bead of each colour being taken?

Science & Mathematics by Anonymous 2018-05-18 11:06:06

Social Science

11 beads,7 red and 4 white.2 beads are picked at random.probability of one bead of each colour being taken?

3 answers

  • Anonymous

    P(red,white) = (7/11)(4/10) = 28/110 P(white,red) = (4/11)(7/10) = 28/110 P(one of each) = 28/110 +28/110 = 56/110 = 28/55

  • Anonymous

    P = 7/11 * 4/10 = 28/110 = 14/55

  • Anonymous

    Pr of one red, one white= 7/11 x 4/10 = 14/55 . But I'm not that reliable. I'd check or wait for corroboration.

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