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15 - EN
To recall this type of
value: Perform this key operation:
Example: To calculate
and for the following data:
55, .54, 51, 55, 53, 53, 54, 52
In the SD Mode:
Each time you press DT to register your input, the number of data input up to that point is
indicated on the display (n value)
Sample Standard Deviation (σ
n-1
) = 1,407885953
Population Standard Deviation (σ
n
) = 1,316956719
Arithmetic Mean ( ) = 53,375
Number of Data (n) = 8
Sum of Values (Σx) = 427
Sum of Squares of Values (Σx
2
) = 22805
Data Input Precautions
DT DT inputs the same data twice.
You can also input multiple entries of the same data using SHIFT ; . To input the data 110
ten times, for example, press 110 SHIFT ; 10 DT .
You can perform the above Key operations in any order, and not necessarily that shown above.
While inputting data or after inputting data Is complete, you can use the and keys to
scroll through data you have input. If you input multiple entries if the same data using SHIFT
; to specify the data frequency (number of data items) as described above, scrolling through
data shows both the data item and a separate screen for the data frequency (Fraq).
© FAST ČR a. s.
15


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