Restrictions could actually mean a healthier lobster population overall.

限制捕捞实际上意味着龙虾整个群体会更健康。

This means population is growing very fast among the poorest.

这意味着人口成长最快速的是在贫穷的人口中。

The need to keep production organized also meant an increasingly urbanized population.

保持生产组织化的需要也意味着人口的城市化程度越来越高。

So this right here is the same thing as the population mean.

所以这里的这个和人口的意思是一样的。

The mean of your sampling distribution is going to be the same thing as your population mean.

抽样分布的均值将与总体均值相同。

You could view this as the population mean for the random variable.

您可以将其视为随机变量的总体均值。

And we know that this is going to be the same thing as the population mean for that random variable.

我们知道这与该随机变量的总体均值相同。

But it's completely possible that the population mean is outside of your data sample.

但总体均值完全有可能在您的数据样本之外。

And the mean of the sampling distribution of the sample mean is going to be the same thing as the population mean.

样本均值的抽样分布均值将与总体均值相同。

Or I could also write it as my sample mean will approach my population mean for n approaching infinity.

或者我也可以这样写，因为我的样本均值将接近我的总体均值，因为 n 接近无穷大。

But I want to show you that that is the same thing as the population mean.

但我想告诉你，这与人口的意思是一样的。

But more cars also means more population, already a major problem in big Indian cities like Delhi, which is why there's a growing focus on electric technology.

但是更多的汽车也意味着更多的人口，在像德里这样的印度大城市里，这已经是一个大问题了，这也是为什么人们越来越关注电力技术的原因。

So the expected value of a random variable, the expected value of a random variable is the exact same thing as the population mean.

因此，随机变量的期望值，随机变量的期望值与总体均值完全相同。

We just said the drug had an effect, that the mean when you have the drug will not be the same thing as the population mean.

我们刚才说药物有影响，当你服用药物时的均值将与人口均值不同。

And then the null hypothesis says no, your mean with the drug's going to be the same thing as the population mean, it has no effect.

然后零假设说不，你对药物的均值将与人口均值相同， 它没有效果。

So this mean is going to be-- this mean right here-- so the mean of our sample proportions is going to be the same thing as our population mean.

所以这个平均值将是——这个平均值就在这里——所以我们的样本比例的平均值将与我们的总体平均值相同。

That the central tendency or you could say, the population mean, of this random variable, or you could say the expected value of this random variable is exactly 3.

这个随机变量的集中趋势或者你可以说是总体均值，或者你可以说这个随机变量的期望值恰好是 3。