IMO, a factor in why people overestimate minority groups is that the news media (and media in general) are almost always discussing one minority group or the ot

IMO, a factor in why people overestimate minority groups is that the news media (and media in general) are almost always discussing one minority group or the other these days. It's in your face all the time. I'm in one minority group myself, and I'm kinda sick of hearing about it!