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you would expect to have 90/10 split in each variation if your a/b test is random

due to the small sample size, there might be some variation there, you could plot the probabilities of this is you need.

Yes, I am more concerned like female should divide in each variation as per 50/50 split.
I am thinking like it will be not happened like 80 females in 1 variation and 20 in other.

<@U03JFHFCULU> couldn’t you have two different samplings then?
One for males and one for females?

Yes, thats is another way but still for small data size its bit difficult.