Munchies:Three large women is too small of sample size to do anything with.
Sure, the three biggest women you know are psychologists, but how many psychologists in your area are big women? Not enough data points to say these women are anything but outliers.
Curiousv:I also know the basics of Bayesian statistics
But as I haven't conducted a scientific study on a statistically significant level, and don't have the means to do so, this is all the data I have.
An indicator of significance is that I haven't gotten to know them as psychologists. I got to know them randomly, and only later did I discover their profession. Taking in consideration that women of this size are quite rare in my area, it might be at least a little more than pure random chance.
Is there something to it? Maybe. Do you know enough to draw any meaningful conclusions? No.