Astonishing! Max of 40 arrests from 72,000 fans, or .00055%! Wow! Let us bring back public executions.
You beat me to it. Though your decimal point is off quite a bit. It's .056% if you use the official attendance of 70,585. Or roughly 1 out of every 1,765 people. But the article said 30-40 so let's go with 35, which is .0495% or 1 out of every 2016 (and that was for "big games"...not necessarily a season average number)
Using last years attendance in Ames, it's 8/game against an avg attendance of 46,242 which is .0173% ... or 1 out of every 5780 at ISU.
But take into account:
1. How spread out things are in Ames. As many studies have shown, you get people in a more crowded area, and they tend to get a little crazier. There's often an "exponential" factor as crowds get bigger. The more anonymous people are, the more likely to act up.
2. The simple fact that things are much more intense in Iowa City. Success has its price, the bandwagon jerks are unavoidable. People just want to be around a big time event. ISU football just isn't as big a deal as Iowa football is.
3. And since our samples don't have the same controls (how many of those "citations" in Ames would have been arrests in Iowa City?) stats aren't necessarily comparable. The season total of 48 arrests for ISU is an actual number. The article quoted 30-40 (an estimate) for a "Big" game weekend in Iowa City. For all we know, that number drops significantly for a Ball St or Indiana game.
Either way, the perception that Iowa is so much worse is overblown. But as we all know...clones will grasp at ANYTHING to say they're better.