I struggled through high school never managing to get my head around statistics. I changed majors from chemistry to microbiology my first year of my science deg

I struggled through high school never managing to get my head around statistics. I changed majors from chemistry to microbiology my first year of my science degree (because thats where all the girls where), and found statistics really easy. So what was the difference? the teachers thats all, some of the best tutors I every experienced where in the science area. I had one tutor explain to me why he threw curve ball problems at the class. He would use it to weed out which ones gave up quick, which ones powered on, which ones just threw tantrums etc... he would then only really teach the percentage of the class that wanted the degree. The rest he said he'd get to passing, some just weren't worth teaching, but he'd make sure the real scientists walked out of the class with the best training they could get (albeit at the expense of others). I'd hazard a guess that type of teaching behavior is endemic, so drop out rates for people who can't get the initiative to put in the extra effort get left behind pretty quickly and hence drop out.