We are just trying to find our best estimator for it.

我们只是想为它找到最好的估计量。

So we can get the best estimator of the true variance.

所以我们可以获得真实方差的最佳估计量。

Remember, this is a sample variance, and we want to get the best estimator of the real variance of this distribution.

请记住，这是一个样本方差，我们希望获得该分布真实方差的最佳估计值。

In order for this to be the best estimator of that, and I gave you the intuition of why many, many videos ago, we divide by 100 minus 1 or 99.

为了让它成为最好的估计器，我给了你为什么很多很多视频之前的直觉， 我们除以 100 减 1 或 99。

Because this is our best estimator for this standard deviation, and if we divide it by 10, we will have our best estimator for the standard deviation of the sampling distribution of the sampling mean.

因为这是我们对这个标准差的最佳估计量，如果我们将它除以 10，我们将得到我们对抽样均值的抽样分布的标准差的最佳估计量。