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To view the box-and-whisker chart for the example data, press GRAPH .
The following graph will be constructed for the data.
Press TRACE followed by and to view the five values making up the
box-and whisker chart. Turn PLOT1 off by pressing 2ndF STAT PLOT
ENTER ENTER 2ndF QUIT .
For Discussion
You and your students can discuss:
1. Why can't we use the midpoint as the lower bound for the intervals to
construct the broken-line graphs? (The intervals would not match our
chosen ones.)
2. How might you use the box-and-whisker chart graph for decisions?
Additional Problems
Create the broken-line and cumulative frequency graphs for the following data:
1. 66 68 73 55 63 58 71 59 62
2. V
alue Frequency
120
513
10 12
20 Other Graphical Portrayals of a One-Variable Data Set/STATISTICS USING THE SHARP EL-9600
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