Well, you can't be right all the time; I'm not omniscient, after all. Last week I reported Nevada's per-pupil spending to be $8,926. But I was wrong: It's higher.
I had divided total revenue (federal, state and local revenue sources) by the student population to get that number for 2006. As it turns out, Nevada spent more on education than the revenue it took in to pay for it, probably thanks to about $331 million in borrowing that year.
Dividing total expenditures (not revenue) for education by the student population in 2006, I find that Nevada actually spent $9,738 per pupil.