00:01
So our flight time has a, we'll kind of chop the graph, is a uniform distribution from 60 to 70 minutes.
00:10
And so since this is 10 units wide, and we know the area has to be one, this will be a 1 tenth.
00:16
So we had to draw our distribution, and that's what our graph will look like.
00:20
And in part b, that's a.
00:23
In part b, we want to find what the mean is.
00:26
Well, the mean is going to be the sum of these two divided by two, or the average of those two endpoints, which will be 65, which we can see, 65 minutes.
00:37
And then we want to find the variance.
00:38
And the variance is going to be the difference between our values, our endpoints...