00:01
This problem says to consider a political discussion group consisting of nine democrats, nine republicans, and five independents.
00:07
And suppose that two group members are randomly selected in succession to attend a political convention, find the probability of selecting two republicans.
00:15
So there's two spots that we need to fill for this random selection.
00:21
And to be able to figure out that the probability of both of these being republicans would be we need to figure out the total number of people in this discussion group by adding up 9 plus 9 plus 5, and that gives us 23.
00:33
So there's 23 total people here in this group, and for the probability that the first person selected to be a republican, we would put the number of republicans, or the number of successes of this probability, over the total 9 out of 23.
00:50
But we want to know the probability that both of these selections would be republicans, and when we select the first republican, that means that we're only going to have eight more republicans, to choose from because we can't select the same republican twice...