Current time:0:00Total duration:15:15
0 energy points
Standard error of the mean
Standard Error of the Mean (a.k.a. the standard deviation of the sampling distribution of the sample mean!). Created by Sal Khan.
If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.