Discrete probability?

Question

Books

Good day to all, the following question arose (Google and Google Translate did not give results) - what kind of section of mathematics is this, discrete probability? More precisely, as it is translated. And, if possible, immediately advise a good book on it in Russian.
Thanks in advance.

Answer 1

Discrete probability theory, suggests Cap.

Answer 2

Maybe it's just an elementary probability theory (where the sets of elementary events are finite and elementary events are equally likely)? Where did you get this term, maybe there is some context there?

Answer 3

en.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D0%BF%D1%80%D0%B5%D0%B4%D0%B5%D0%BB%D0%B5%D0 %BD%D0%B8%D0%B5_%D0%B2%D0%B5%D1%80%D0%BE%D1%8F%D1%82%D0%BD%D0%BE%D1%81%D1%82 %D0%B5%D0%B9