Many Chinese restaurants are telling people to order dishes by using the "N-1" formula."N" stands for the number of people in your group.

许多中餐馆告诉人们用“N-1”公式点菜。“N”代表你们的人数。

youdao

Otherwise, n is odd. Multiply it by 3 and add 1.

否则，如果n是奇数，则乘上3再加1；

youdao

And unlike n, l can start all the way down at 0, and it increases by integer value, so we go 1, 2, 3, and all the way up.

不像n，l可以从0开始取，然后每次增加一个整数，所以我们可以去1，2，3，一直下去。

youdao

They divide by n-1 to make it an unbiased estimator of the population variance, but I'm just going to show it in a simple way here.

当除以n-1表示的是对总体的,无偏估计,我在这里只是说的简单一点

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Bottom line: by relying on N-of-1 anecdotes rather than a more systematically gathered dataset from their own patients, physicians miss out on profound learning opportunities, and patients miss the opportunity to benefit from the collective experience of each other.

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