Statistics
no
Calculus to produce Quantative data
Yes.
Arithmetic, Algebra, Geometry, Precalculus/Calculus, Statistics, Trigonometry
Statistics
Differential statistics are statistics that use calculus. Normally statistics would use algebra but differential statistics uses calculus instead of algebra.
no
Calculus is much harder than statistics, and don't really have anything in common other than algebraic process. Calculus is the study of rates, while statistics is probability.
Statistics and precalculus both require skills in algebra. The difference between basic statistics and precalculus is that, precalculus is more of advanced algebra. Statistics on the other hand is more computational stuff. If you are talking about basic statistics, i think it is easier than precalculus. But remember, statistics is more involved as it gets higher since it requires calculus or real analysis kind of thing, so it is difficult.
Some people find calculus easier, others find physics easier. There is no general answer.
Calculus to produce Quantative data
Yes.
Calculus AB tends to be easier due to it being mostly composed of the basic introductory to Calculus. Whereas Calculus BC contains information from AB but as well as further information which could possibly be somewhat more rigorous than AB.
No, AP Calculus is a far more difficult course.
Yes.
If you have the option to take Pre-Calc Algebra, do that.