What is meant by 'Probability of Repeated Events' ?

Question

I am asking this in reference to the Probability Concept of Maths

Answer 1

'Probability of Repeated Events' is a subset of Combinatorial Statistics.

For example; n = TRIALS, r = EVENTS.  Statistical nomenclature for this is nCr,   Mathematical nomenclature is  n! / [r! (n - r)!]