00:01
Okay, so we want to calculate the probability of winning the lottery when there are 30 numbers and we are choosing five of them.
00:12
So we want to calculate the probability that any five number combination that we pool will be the winning numbers.
00:21
So in order to do that, we're essentially going to calculate how many combinations that we can pull out.
00:30
Where we're pulling out five numbers at a time when the balls are not replaced.
00:35
The numbers are not replaced.
00:37
So it kind of follows this formula to calculate the total number of combinations of 30 numbers, and we're selecting five.
00:44
This is called n, choose, k.
00:46
This is oftentimes how this is referred to.
00:49
So what we're doing instead is we have 30 numbers.
00:55
We have 30 numbers, and we are choosing five...