Standard Deviation

  • Created by: Sofalof
  • Created on: 24-04-15 18:15

Standard Deviation


  • Shows how much data is clustered around a mean value
  • It gives a more accurate idea of how the data is distributed
  • Not as affected by extreme values


  • It doesn't give you the full range of the data
  • It can be hard to calculate
  • Only used with data where an independent variable is plotted against the frequency of it
  • Assumes a normal distribution pattern


The higher the calculated value the more the data is spread out from the mean. Parametric test. 


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