Hello, I have problem with one probability theory task. Hope that someone of you will be able to help me. So task is: Suppose that you are playing in lottery. The comptuer generates the lottery ticket which is made from 25 numbers. Total there are 75 numbers and 49 are extracted during the game. You win if all 25 numbers from 49 will be extracted. Need to calculate probability of winning. So my soulution is very simple: (50;24)/(75;49). The 50 is amount of numbers which are not included in our ticket. 24 is 49-25. Does this solution is good?