How to build thing i give it numbers/latters and it shows the chance of next number i will give?

Question

i want to build somthing that i put into it 8 numbers randomly no matter if i repeat the numbers and it will give me the chance of the next number i will choose.something like loto machine or chance machine.

Answer 1

not sure what your goal is but maybe this wikipedia article about Lottery Mathematics will be useful:
https://en.m.wikipedia.org/wiki/Lottery_mathematics