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Pre Algebra

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Four numbers are drawn from random tiles numbereed 0 through 9. What are the odds of drawing numbers 1 through four in any order?

  • Pre Algebra -

    so you want 1-2-3-4

    prob = (1/10)(1/9)(1/8)(1/7) = 1/5040

    prob of not getting 1-2-3-4 is 5039/5040

    so the odds in favour of 1-2-3-4 is (1/5040) / (5039/5040)
    = 1 : 5039

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