00:01
All right, so here you got, you're trying to make a playlist of 22 songs.
00:05
How many different ways can you arrange the first four songs in the playlist? so just write yourself out for those spots here.
00:12
And we're going to use just a counting principle.
00:14
We're just going to figure out how can i, how many ways can i pick the first song, the second one, the third one, and the fourth one.
00:21
We just multiply those four numbers together.
00:24
Now, if you can repeat the songs, you'll get different answers.
00:29
So you've got 20 ways, 22 ways to pick the first.
00:31
One.
00:33
Now if you can if you can replay the song over and over again, like if you want to play the same song over and over again, you can use 22 ways to play the second one, there's 22 ways to play the third one, and there's 22 ways to play the fourth one.
00:46
You can multiply those four numbers together and get that.
00:48
I don't think that's what they're what you would do if you're a dj you wouldn't play the same song over and over again...