Please try again later. Computers. Finance. Terms and conditions of use We've updated our terms and conditions (now called terms of service).Go Review and accept our updated terms of service.. You can change this preference below. This feature is not available right now. Sign in Share More Report Need to report the video? Sign in to report inappropriate content. Working. John Quinn 166,023 views 4:47 What is a "Standard Deviation?" and where does that formula come from - Duration: 17:26.