If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Simulation providing evidence that (n-1) gives us unbiased estimate

This original Khan Academy video was translated into isiZulu by Wazi Kunene. The translation project was made possible by ClickMaths: www.clickmaths.org