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Entering and Removing 1-Variable Data
Before performinga statistics calculation, you must enter ail
the data valuesinto the statistics registers. You can enter the
data values individually or enter several identical data values
at one time. You can also remove any data valuesthat are
entered incorrectly. (An example of entering and removing
't-vat
je data begins on page 3-8.)
Entering
The [E+]
key enables youto enter data values and display
1-Variable
the numberof data values accumulated.
Data Values
Toentera single data value:
1. Enter the value.
To enterseveral identical data valuesat onetime:
1. Press [STAT], enter the numberofdata values, and
press <FRQ>.
2. Enterthe data value andpress [E+].
Removing
The[INV] [E+] key sequence enables you to remove
1-Variable
previously entered data values anddisplay the number
Data Values
of data values that remain.
To remove value just after you enteredit, press [INV]
E+].
To removea data valueafter pressing any key other than
or [iNv):
1. Reenterthe value.
2. Press [INV]
To removeseveral identical data valuesat one timeafter
pressing any key other than
or [INV]:
1. Press
| , reenter the numberofdata values, and
press <FRQ>.
2. Reenterthe data value andpress [INV] =
Note: If you remove more values than youintend, the
resulting sum can be negative. To correctthis, either
reenter the points removedin erroror begin again.
Statistics Operations
3-5
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