00:01
All right, so with the given information for a, we have if you get a promotion, what's the probability you will get a raise? so raise given promotion.
00:14
Well, if you want to find the, we had to do the intersection of these first.
00:19
So there's a 0 .71 probability that you would get a raise, a promotion or both.
00:24
So that's not it.
00:25
So the probability of getting a promotion and a raise is 0 .27.
00:30
Then out of the probability of getting a promotion, that's 0 .4.
00:37
So that's gonna simplify to be, oh, that's 27 over 40.
00:49
So that gives us 0 .675.
00:56
And then b, what's the probability that you will get a raise? well, probability of a raise.
01:06
So the probability of getting a raise, we know that probability of the union of getting a raise, it can be a raise or getting a promotion.
01:18
And then minus the probability of getting a promotion.
01:22
And then plus the probability of the intersection.
01:27
So a raise and a promotion...