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Calculator Operations
Turn the calculator on and press STAT to enter the statistics menu.
Delete old data and enter the following data set for L1:
15 28 17 36 38 19 13 25 27 41
by pressing 1 5 ENTER 2 8 ENTER 1 7 ENTER 3 6 ENTER
3 8 ENTER 1 9 ENTER 1 3 ENTER 2 5 ENTER 2 7 ENTER
4 1 ENTER .
Check the data you have entered by pressing ▲ to move back through the data.
To graph a broken-line graph for the data set, first press 2ndF STAT PLOT ,
touch A PLOT1, and press ENTER . Turn PLOT1 on by pressing ENTER .
Press ▼ ENTER to choose one-variable data. Press ▼ 2ndF L1 ENTER
to enter L1 as the data list. Clear the frequency prompt by pressing DEL
ENTER . Set the graph to a broken-line graph by pressing 2ndF STAT PLOT ,
touch B B.L., and double touch 3 Broken .
In our example, the smallest value is 13 and the largest value is 41. The logical
intervals for the data set would be 10-19 (tens), 20-29 (twenties), 30-39 (thirties),
and 40-49 (forties). Notice, each data point is included within an interval
(exhaustive intervals) and only within one interval (exclusive intervals).
To set this viewing window, press WINDOW and set the horizontal axis to
10 < x < 50 (beginning and ending values for intervals described previously) with
Xscl = 10 (width of interval) by pressing 1 0 ENTER 5 0 ENTER 1
0 ENTER . Set the vertical axis to 0 < y < 5 (from no data points to at most
five within the interval) with Yscl = 1 (counting) by pressing 0 ENTER 5
ENTER 1 ENTER .
Other Graphical Portrayals of a One-Variable Data Set/STATISTICS USING THE SHARP EL-9600 17
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