So if I called this standard error of the mean, that's wrong.
所以如果我称这个平均值为标准误差,那就错了。
可汗学院:统计学(视频版)
And then when n is equal to 25, we got the standard error of the mean being equal to 1.87.
然后当 n 等于 25 时,我们得到均值的标准误差等于 1.87。
可汗学院:统计学(视频版)
Then you get standard error of the mean is equal to standard deviation of your original distribution, divided by the square root of n.
然后你得到均值的标准误差等于原始分布的标准差除以 n 的平方根。
可汗学院:统计学(视频版)
Now, this guy's standard deviation or the standard deviation of the sampling distribution of the sample mean, or the standard error of the mean, is going to the square root of that.
The standard error (SE) is the standard deviation of the sampling distribution of a statistic, most commonly of the mean. The term may also be used to refer to an estimate of that standard deviation, derived from a particular sample used to compute the estimate.