BOX AND WHISKER PLOT

Nicole CastroSebastian RiveraAlyssa FryeGeorge Moerler

VOCAB FIRST!Median: the middle number in the number lineQuartiles: values that divide a data set into four equal parts.

Interquartile range: the difference between the upper and lower quartiles

Lower quartile: is the median of the lower half of the dataUpper quartile: the median of the upper half of the dataBox and Whisker Plot: a graph that summarizes the set of data by displaying it along a number line

STEP BY STEP… First put the list of numbers in order Then find the median After that cut the list into four equal parts (these cuts are known as quartiles)

NEXT…

TRY IT!Find the 3 quartiles..

5,9,3,6,8,1,6

INTERQUARTILE RANGE

TRY SOLVING IT!Find the interquartile range… 1,3,5,6,6,8,9

PLOT AND WHISKER PLOT

EXAMPLES There were 20 kids in a park. Their ages ranged from 2 to 12. Now make a Box

and whisker plot to find a range of their ages.

2,2,3,4,4,4,4,5,5,6,6,6,7,7,8,9,9,10,11,12

2 3 4 5 6 7 8 9 10 11 12