Hi Engineer,
Well, your mind is certainly on the right track….. and perhaps wildly accurate. :wink-wink
The typical bingo player tends to be female…although as you said, there may be some men who may also fancy the game!
Nonetheless, the female bingo players also tend to be aged between 35 to 55 years of age (approx. 70% of the market). So that leaves 30% to comprise of other gendre and age groups.
However, I suspect the majority is what you’d be interested to know so alas, your imagination isn’t all that far from the reality! 
Oh, and one more thing, bingo players also enjoy playing slots big time!
Cheers.
Sara.