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66
Confi rming and editing data
• Use
z
/
i
to display a data item from a previously
entered data set.
• Press
.
z
or
.
i
to jump to the fi rst or last
data item, respectively.
• Each data item is displayed in the form: “Xn = (
x
value)”, “Yn =
(
y
value)”, or “FRQn = (frequency)”, where “n” is the data set
number.
Editing data
• Display the data item you wish to modify by using
z
/
i
,
enter a new value and press
J
.
Deleting data
• Display the data item to be deleted by using
z
/
i
, and
press
.
?
.
• If a value/frequency is deleted, the corresponding frequency/
value is also deleted.
• If you wish to delete all data, press
.
b
.
Inserting data
Using the
z
and
i
keys, specify the correct place to
insert your new data by displaying the value that is to come
directly after, and then press
.
e
. A new data set with a
value of zero and a frequency of one will be inserted. Modify the
new data set to include your data.
X1=
1000
Data set number
x value
Y1=
2000
Data set number
y value
FRQ1=
1100
Data set number
Frequency
5StatisticalCalculations.indd665StatisticalCalculations.indd66 06.7.108:03:38PM06.7.108:03:38PM
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