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Odds of roosters

Discussion in 'Random Ramblings' started by Ridgerunner, Mar 22, 2009.

  1. Ridgerunner

    Ridgerunner Chicken Obsessed

    19,950
    3,111
    476
    Feb 2, 2009
    Northwest Arkansas
    I think we all know there is no guarantee of male-female ratio in ordering straight run chicks or hatching a certain number of eggs. However, here are the odds I clculated for certain numbers. If someone spots a mistake, please advise. This does not consider packing peanuts. I think we know the odds of those.

    4 chicks

    4 male 0 female - 1 in 16 or 6.3%
    3 male 1 female - 4 in 16 or 25.0%
    2 male 2 female - 6 in 16 or 37.5%
    1 male 3 female - 4 in 16 or 25%
    0 male 4 female - 1 in 16 or 6.3%


    5 chicks

    5 male 0 female - 1 in 32 or 3.1%
    4 male 1 female - 5 in 16 or 15.6%
    3 male 2 female - 10 in 16 or 31.3%
    2 male 3 female - 10 in 16 or 31.3%
    1 male 4 female - 5 in 16 or 15.6%
    0 male 5 female - 1 in 16 or 3.1%


    6 chicks

    6 male 0 female - 1 in 64 or 1.6%
    5 male 1 female - 6 in 64 or 9.4%
    4 male 2 female - 15 in 64 or 23.4%
    3 male 3 female - 20 in 64 or 31.3%
    2 male 4 female - 15 in 64 or 23.4%
    1 male 5 female - 6 in 64 or 9.4%
    0 male 6 female - 1 in 64 or 1.6%

    7 chicks

    7 male 0 female - 1 in 128 or 0.8%
    6 male 1 female - 7 in 128 or 5.5%
    5 male 2 female - 21 in 128 or 16.4%
    4 male 3 female - 35 in 128 or 27.3%
    3 male 4 female - 35 in 128 or 27.3%
    2 male 5 female - 21 in 128 or 16.4%
    1 male 6 female - 7 in 128 or 5.5%
    0 male 7 female - 1 in 128 or 0.8%

    8 chicks

    8 male 0 female - 1 in 256 or 0.4%
    7 male 1 female - 8 in 256 or 3.1%
    6 male 2 female - 28 in 256 or 10.9%
    5 male 3 female - 56 in 256 or 21.9%
    4 male 4 female - 70 in 256 or 27.3%
    3 male 5 female - 56 in 256 or 21.9%
    2 male 6 female - 28 in 256 or 10.9%
    1 male 7 female - 8 in 256 or 3.1%
    0 male 8 female - 1 in 256 or 0.4%
     
  2. goobhen

    goobhen Chicks Rule

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    139
    Dec 6, 2008
    Indiana
    are you telling me they use roos as packing peanuts??!! [​IMG]
     
  3. Ridgerunner

    Ridgerunner Chicken Obsessed

    19,950
    3,111
    476
    Feb 2, 2009
    Northwest Arkansas
    Quote:Yup. It's better than euthanizing them.
     

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