00:01
Hey everyone, welcome to numerate.
00:03
We have a problem here to calculate the number of ways that were n element and there's going to be n sample, right? so from here, let's do a first.
00:18
So this will be the equation we're going to use.
00:20
It's a combination equation, usually solved for probability or in statistics.
00:27
So this is how it goes.
00:28
So n factorial divided by n uh small n vector factorial or sample size parentheses n minus a small n factorial.
00:40
Okay.
00:41
So let's do number a first.
00:44
So we will have, uh, it's going to be seven two.
00:54
So let's see seven two.
01:04
Okay, so this is the how do you write usually for combinations.
01:11
Okay...