Statistics is not even close to completely different than calculus. In fact I'd say it's the opposite, statistics is completely derived from calculus. You can't

Statistics is not even close to completely different than calculus. In fact I'd say it's the opposite, statistics is completely derived from calculus. You can't even derive a PDF or moment or mle without calculus, literally the most basic aspects of stats. Sure you can study applied and not know how any of the software you use works but I'd say you're missing something if you do that.