6.4-5 Box-and-Whisker Graphs (p.144-145)

I. Box-and-whisker graph
-Show how far apart and HOW EVENLY data are distributed

II. Parts of a box-and-whisker graph: 5 marks seperating data into 4 parts
A. Lower Extreme - the least value in the set of data - the point at the bottom whisker
B. Upper Extreme - the greatest value - the point at the top whisker
C. Median - find the median of the data - this is the middle line of the box
D. Lower quartile - the middle number between the median and the lower extreme - one side of the box
E. Upper quartile - the middle number between the median and the upper extreme - the other side of the box


Harcourt math site for a tool to make Box-and-Whisker Graphs