Validity of using probability?

Question

Why would you expect to hear more arguments about the validity of using statistics then the validity of using probability?

Answer 1

I usually see more arguments about the use of statistics than the use of probability. Probability is just one form of statistics after all, and it's pretty straightforward compared to some of the more complex statistical analyses.

The thing is, for any statistical analyses there are assumptions involved. For example when you use probability to solve mendelian genetics problems you are making some assumptions, like the two genes aren't linked, etc...
Most often these assumptions are tested before the analyses. The quality of your statistics usually goes hand in hand with the safety of your assumptions, regardless of what kind of statistics you use.

Answer 2

because there is no average person
the validity of statistics is based on the existence of average humans
they dont exist though
on the other hand-
probability just says what could happen or be possible
it doesn't define anything