| Press the STAT key
on you calculator. Then you get the screen shown in the picture to the
right.
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| At the top of the screen, you can choose either to edit
your data or calculate statistics. Because you have not yet entered your
data, you should choose EDIT by pressing 1 or the ENTER
key.
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| If there are numbers in lists L1 and L2 they must be
cleared. Press the STAT key, press 4 to select
ClrList and press the L1 key. Now you have cleared
list L1.
Press STAT again, press 4 to select
ClrList and press the L2 key.
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| When you have cleared the lists you are going to use,
press the STAT key once more and select EDIT
by pressing 1 or the ENTER key.
When you have chosen to edit your data, you will see the
following screen. You will use columns L1 and L2 to store the data from
your frequency table.
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|
| Store the lengths in the first column. Begin by
typing the first number. Then press ENTER,
and type the next number. Continue until you have entered all the
lengths in the table. You can use the arrow keys
to move around in the table.
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| Store the frequencies in the second column. Use the arrow
keys to move to the first line of the second column. Then type the
first number, followed by ENTER. Continue
until you have entered all the frequencies.
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| When the data have been entered, press the STAT
key again. Now, you could calculate various statistics. Try selecting
CALC. Do you recognize the statistics that you get? We will return to this
part in the next activity.
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| Now you will configure the calculator so that it can
create a histogram. There are many settings that must be correct
. Begin by pressing the WINDOW key.
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| You can use the arrow keys
to move up and down. These are the correct settings:
Xmin = 2.40
Xmax=2.59
Xscl=.01
Ymin=0
Ymax=10
Yscl=1
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| Next press the STAT PLOT key.
When the first plot is highlighted press ENTER.
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| On this screen you can move around by using the arrow
keys. Move to the picture of the histogram and press ENTER.
In the Xlist line, go to L1 and press ENTER.
In the Freq line, go to L2 and press ENTER.
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| Now all the settings should be correct. Press the
GRAPH key. If everything has been done
correctly you should seee a histogram.
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|
