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.

Value

 

Frequency

 

 

 

 

 

 

1

 

20

 

 

 

 

 

 

513

1012

20Other Graphical Portrayals of a One-Variable Data Set/STATISTICS USING THE SHARP EL-9600

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Image 24
Sharp EL-9600 manual Enter 2ndF