B is the same starting letter as Blair. You might say, well, that's fair. You're doing it for each of their letters, but maybe there's like 10 people whose names start with an N and only two people whose names start with a B. Once again, you're not even getting a large sample. And then on top of that, maybe there's some type of people with the same starting letters somehow like each other more. So I would steer clear of this one. Ask every student in the class.