6) Do the minimum foreign language classes
This is one of my most controversial pieces of advice. A lot of people disagree.
Languages are hugely important. And you should learn another (or many others) besides English. But I think they're better learned in immersion, during your summers or before and after college. Maybe take an introductory course or two at university to get you started, or an advanced course or two to solidify what you already know, but only that.
Statistics are not more important than languages. But the opportunity cost of skipping a statistics course is high because it's hard to find ways to learn statistics outside the university. Remember you only get 30 or 40 courses at university. There are a dozen other times and places you can learn a language. Arguably they're better places to learn it too.
I feel the same way about most business and management skills. They are critical to a lot of professions (even academia), but classrooms are poor places to learn them given the alternatives. Exceptions might be more technical skills like finance and accounting.
Note that I say all this as someone who doesn't really speak another language well. I can travel in French and Spanish (barely), and I regret not being any better. But I don't think taking more classes in college would have helped this. I should have made other life choices, like living abroad. This brings me to my next point...