Statistical Keys (Use In The Sd Mode Only); The Display - Citizen SRP-145T User Manual

Statistical Keys (Use in the SD mode only)

[SHIFT] [SD] Statistical Mode Select Key
Sets the calculator to the statistical calculation mode. SD appears on

the display.

[SHIFT] [CAD] Statistical Register Clear Key
Clears the statistical calculation registers.
[DATA], [DEL] Data Entry and Delete Key
In the SD mode, enter data by pressing the desired numbers, then
[DATA]. If you enter incorrect data and do not notice your mistake
until you press [DATA], enter the same incorrect data and then press
[DEL] to delete that incorrect data.
[ x ] Arithmetic Mean Key
Calculates the arithmetic mean ( x ) of the data.
[SHIFT] [σn] Population Standard Deviation Key
Calculates the population standard deviation (σn) of the data.
[σn–1] Sample Standard Deviation Key
Calculates the sample standard deviation (σn–1) of the data.
[SHIFT] [Σx ] Sum of Square Value Key
2
Calculates the sum of the square value (Σx
[SHIFT] [Σx] Sum of Values Key
Calculates the sum of the value (Σx) of the data.
[n] Number of Data Key
Displays the number of data (n) entries.
The Display
The display shows entered numbers, interim results, and calculation
results.
Floating point displays up to 10 digits.
The mantissa section displays up to 8 digits. The exponent section
displays up to ±99.
: Indicates the statistical mode.
SD
: Indicates that a value is stored in memory.
M
: Appears to the left of the mantissa or exponent to indicate
-
that the respective value is negative.
: Indicates an error.
E
: Indicates the program learn mode.
PGM
GRAD : Indicates that gradient units have been selected.
: Indicates that radian units have been selected.
RAD
: Indicates that degree units have been selected.
DEG
2F : Appears when the second function has been selected.
) of the data.
2
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E6-