five number summary give quick sense on data

Five-number summary help to give quick sense on data spread and skew

  • Every distribution can be organized using a five-number summary:
    • Lowest value
    • Q1: 25th percentile
    • Q2: the median
    • Q3: 75th percentile
    • Highest value (Q4)
  • These five-number summaries can be easily visualized using box and whisker plots.
    • This help to get better understanding on the data, especially since Low variability gives better predictabilityLow variability gives better predictability

      #FleetingNote


      Why does variability matter?

      While the central tendency, or average, tells you where most of your points lie, variability summarizes how far apart they are. This is important be...
    • For each of our samples, the horizontal lines in a box show Q1, the median and Q3, while the whiskers at the end show the highest and lowest values.

References

  • central tendency Private or Broken Links
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  • Low variability gives better predictabilityLow variability gives better predictability

    #FleetingNote


    Why does variability matter?

    While the central tendency, or average, tells you where most of your points lie, variability summarizes how far apart they are. This is important be...
    • [Variability Calculating Range, IQR, Variance, Standard Deviation (scribbr.com)](https://www.scribbr.com/statistics/variability/)

Metadata

  • topic:: 00 Statistics00 Statistics
    #MOC / Hub for notes related to general statistical knowledge
  • updated:: 2022-03-22 Private or Broken Links
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  • reviewed:: 2022-03-22 Private or Broken Links
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  • #PermanentNote