Data Display Tools

Choosing data display tools :


Frequency of occurrence: Simple percentages or comparisons of magnitude 
  • Bar chart
  • Pie chart
  • Pareto chart 
Tallies by category (data can be attribute data or variable data divided into categories)
Trends over time 
  • Line graph 
Measurements taken in chronological order (attribute or variable data can be used) 
Distribution: Variation not related to time (distributions) 
  • Histograms
Forty or more measurements (not necessarily in chronological order, variable data) 
Association: Looking for a correlation between two things
  • Scatter diagram
Forty or more paired measurements (measures of both things of interest, variable data)



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