What are the odds of 6 snails out of an infinite no.) be all male or all female?

Question

I wanted one or two snails for my aquarium. I went to a pet store who told me that the "pest" snails that come attached to aquatic plants were free. While I only wanted 1 snail, she gave me 6 tiny babies! No, I don't want to overrun my tank with snails, so how can I calculate the odds of femailes versus male snails? Of course I can just look for and destroy snail eggs, but I'd like to know the math behind the snails.odds of

Answer 1

me gess 50% male & 50% female

6 snales, chans all same sex=(1/2)^6

=1 in 64