It's going to be the same thing as the mean of the population.

这将与人口的平均值相同。

And the mean of the population is actually the true population proportion.

而人口的均值实际上就是真实的人口比例。

You take each data point, find out how far it is from the mean of the population-- the mean of the population.

您获取每个数据点，找出它与总体平均值的距离——总体平均值。

But in this case, your sample is kind of skewed, and the actual mean of the population is out here someplace.

但在这种情况下，您的样本有点偏斜，人口的实际均值在这里某处。

And we know that the mean of each of the sampling distributions is actually the same as the mean of the population distributions.

我们知道每个抽样分布的均值实际上与总体分布的均值相同。

Here they're talking about the mean of a sample of the population, and here they're talking about the mean of the population as a whole.

这里他们谈论的是人口样本的平均值，而这里他们谈论的是整个人口的平均值。

The mean of your sample is going to converge to the true mean of the population or to the expected value of the random variable.

样本的均值将收敛到总体的真实均值或随机变量的预期值。

But if I knew the true population means-- So my question is: Is the mean of the population of people taking Food 1 equal to the mean of Food 2?

但如果我知道真实的人口均值—— 那么我的问题是：食用食物 1 的人口的均值是否等于食品 2 的均值？

So the mean of the sampling distribution for this sample proportion, for the women, which is going to be the same thing as the mean of the population, which we already saw is going to be equal to P2.

所以这个样本比例的抽样分布的平均值，对于女性，这将与我们已经看到的人口平均值相同， 将等于 P2。