Odds of roosters

Ridgerunner

Free Ranging
11 Years
Feb 2, 2009
25,046
14,044
727
Southeast Louisiana
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%
 

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