56
Note!
Each time you press the
key to register the data entered, the
number of data entries made up to that time appears in the display
(n-value)
54
51 55
53 54 52
(Random sample standard deviation σ
n
-1
)
(Population standard deviation σ
n
)
(Arithmetic mean χ)
(No. of entries n)
(Sum of values ∑χ)
(Sum of the squares of the values ∑χ²)
Precautionary measures when entering data
D Pressing enters the same data twice.
D It is also possible to enter the same data several times using the
keys. E.g. to enter data value 110 ten times, press the keys
sequence 110
10 .
D You can enter the above key operations in any sequence, i.e. not
necessarily in the order described.
D When entering data and after completing data input, you can press
the
and keys to scroll through the data entered. If you have
entered the same data several times using the
keys to
specify the data frequency (number of data items) as described
above, scrolling through the data produces separate displays for the
data items and the data frequency (Freq).
D You can edit the data displayed, if necessary. Enter the new value
and press the
key to replace the old value with the new one. This
means that you must press the
key first to exit from the data
display before completing another operation (calculation, call in the
statistical calculation results, etc.).
D If you press the key instead of the key after having changed
a value in the display, the newly entered value is registered as a new
data item, whereby the old value remains unchanged.
52.
SD.........
1.407885953
1.316956719
53.375
8.
427.
22805.
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