Variance and standard deviation

Variance and standard deviation#

Learning objectives#

After working through this topic, you should be able to:

  • explain why wee need to make degrees-of-freedom adjustments when calculating centered moments

  • explain the concept of variance and standard deviation

  • calculate variance and standard deviation

Materials#

Video with English subtitles:

Download the slides.

Video with German subtitles:

(turn subtitles on in the bottom right corner of the video)