00:01
Okay, so here there are three possibilities.
00:03
We've got a sample of eight people.
00:05
And the probability that they're watching hope is 0 .5.
00:09
The probability that they're watching the 3abn channel is 0 .3.
00:14
And the probability that they're watching the sabc channel is 0 .2.
00:19
And we want the probability that out of 8, 5 are watching hope, two are watching the 3 abn channel and one is watching the sabc channel.
00:40
Okay, so first we've got eight people to choose from and we're going to choose five of them to be watching the hope channel, which has probability 0 .5 to the 5.
00:55
Now normally if we were just doing a binomial distribution, we'd then have 0 .5 to the 3, which would be the 3 people not watching the hope channel.
01:02
But here we're being more specific, and we're saying, okay, out of the remaining three people, i'll just write in black out of the remaining three people, we're then picking two of them, two of them, to be watching the three abn channel...