Problem #5 update

I just noticed a problem with the data file associated with Problem #5 (and I am shocked, shocked to find that none of you noticed it). I've corrected the problem and uploaded a new data file. Unfortunately, that means that if you already have some results, you'll need to start your analyses over again. Sorry about that.

Oh, if you're wondering what the problem was, it had to do with the map information. The first two markers on each chromosome were both situated at map position 0. Come to think of it, I'm sure the reason that no one pointed out my mistake was that you're all too polite.