HG098 Standard Deviation Divisor

Download all data files in one go.

Get the Flash Player to see this player.

This activity is for using with students who already know how to calculate standard deviation by hand, but who now need to know why we divide by 'n-1' and not 'n'.

Structured development of concepts, definitions and classroom discussions are contained within the document.

This is ideally placed for using with TI Nspire Navigator, with whole class screen capture.