Box Plots

Box Plots

1. first you need to find the

   • median
     • Middle number
   • Lowe quartile
     • The middle number to the left of the median
   • upper quartile
     • middle number to the right of the median
   • Then you draw the upper quartile, lower quartile and median onto your graph
     • Join them the lines up to make a box
     • Then you add wiskers
       • Smallest number on the left
       • Biggest number on the right

2. Interquartile range= Lower quartile - Upper quartile

Bilder und Dateien der Mindmap