Probability Question
- by Juddling
if i pick 10 numbers from a possible 80.
what is the probablity for someone else picking the same 10 numbers as me? or just 4 numbers? or no numbers?
i think it's no matches: 10/80
one match: 10*9/80*79
so the formula would be (10!/matches!)/(80!/matches!)
is this right? i've only just started doing this at A-level and i need it for a game script i'm making.