Which contains the expected values and predictions which contains the actual value.

其中包含预期值和预测值，其中包含实际值。

Think about expected value as the mathematical truth of how much money you are winning or losing.

把期望值想象成你能赢或输多少钱的数学真理。

Most of the players in the casino, most of the game, you have a negative expected value.

赌场中的大多数玩家，大多数游戏都有一个负期望值。

But this is the mean, this is the expected value.

但这是平均值，这是期望值。

Let's take our real time signal remove the expected value cold and flu.

- 让我们把我们的实时信号去掉感冒和流感的预期值。

But it is the expected value.

但它是预期值。

The mean, the expected value of this distribution, is p.

均值，即此分布的期望值，为 p。

By assigning probabilities to various outcomes, decision-makers can evaluate the expected value and make optimal choices.

通过为各种结果分配概率，决策者可以评估预期值并做出最佳选择。

The expected value of the supplementary cost, when the equipment was originally produced, is a definite quantity.

补充成本的预期值， 在设备最初生产时， 是一个确定的数量。

What we do is we figure out what the expected value would have been if you do assume the null hypothesis.

我们所做的是，如果您确实假设原假设，我们会计算出期望值是多少。

What is the expected value of z going to be?

z 的期望值是多少？

If we talk about the expected the value of y, that is the same thing as the mean of y.

如果我们谈论 y 的预期值，那与 y 的平均值是一回事。

So this is an interesting case where the mean or the expected value is not a value that the distribution can actually take on.

所以这是一个有趣的案例，其中均值或期望值不是分布实际可以采用的值。

This compares the pot of investments it currently holds against the expected future value of the promises it has made to those paying in.

这将它目前持有的投资量与它对支付者做出的承诺的预期未来价值进行了比较。

So the expected value of XY. Now what do we have over here?

所以 XY 的期望值。现在我们这里有什么？

The expected the value of z is going to be equal to the expected value of x plus y.

z 的预期值将等于 x 加 y 的预期值。

Then we find the squared distance from that expected value, and we, I guess you could call it, normalize it by the expected value.

然后我们找到与该期望值的平方距离，我想你可以称之为， 用期望值对其进行归一化。

We did the expected value of this and we have one term left.

我们做了这个的预期值，我们还剩下一个任期。

Now you may or may not already know these properties of expected values and variances, but I will reintroduce them to you.

现在你可能知道也可能不知道期望值和方差的这些性质，但我会重新向你介绍它们。

So the expected value of these squared differences, and that you could also use the notation sigma squared for the random variable x.

所以这些平方差的期望值，你也可以使用符号 sigma squared 来表示随机变量 x。