Chick Sex Odds?

[SamanthaBrooke]

I was wondering what my odds were on my chicks, I ordered 25 so I'd get the discount and not have to pay many extra fees for a small order but Bantam's are only St, Run, I am crossing my fingers, toes and praying really hard that I get the 10 Hens I am wanting and I only need 1 roo, so out of 25 chickies what do you think my odds are of getting the 10 girlies I want?

Have a happy chirpy day!

 

[Egghead_Jr]

Your chances are 90% to get within one standard deviation of 12.5 (half). I'd assume 2.5 close to the deviation therefore your 90% assured 10 to 15 hens. 95% assured two deviations; 7.5 to 17.5 (8 to 18) hens.

 

[SamanthaBrooke]

Wow you are awesome!

Thank you for that break down, easily understood by a mathematical moron!

I would be giddy as all if I got all those hens!!