data analysis: descriptive statistics

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    Created by
    Charlotte Perks

    Cards (10)

    • mean

      add them all up and divide by the number there all is
    • median 

      middle value
    • mode

      most frequently occurring
    • range

      subtract the lowest from the highest and add 1
    • standard deviation

      measures how much scores deviate from the mean
    • mean (evaluation)

      + most sensitive and representative
      +easily distorted
    • median (evaluation)

      +not affected by extreme values
      -less sensitive than the mean
    • mode (evaluation)

      +easy to calculate
      -crude, unrepresentative
    • range (evaluation)

      +easy to calculate
      -may be unrepresentative of the data set
    • standard deviation

      +much more precise than the range
      -can be distorted by extreme values
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