00:01
Given the probability distributions shown, we're going to make some computations.
00:06
So first i'm going to quickly jot down the probability distributions.
00:14
They're very similar.
00:21
So first we have 0 .46, 0 .23, 0 .17, 0 .10 .04.
00:29
And the second one, we go in the opposite order .04 .10, 0 .17, 0 .23 .46.
00:37
So the first thing we're going to do is we're going to calculate the expected value for each distribution.
00:43
And to do that, we're going to take x times p of x and then add them together.
00:48
So 0 .23, 0 .34, 0 .30, and 0 .16, the sum of which is our expected value, and that's 1 .03.
01:01
For our second data set, x times p of x, we have 0 .10, 0 .34 .69, and 1 .84, and 1 .84 .84.
01:20
And the sum of that, which would be the expected value, is 2 .97...