Calculator tips&tricks
SD
Statistical
Calculations
REG
Population Standard Deviation (σn) = 1.316956719
Arithmetic Mean (o) = 53.375
Number of Data (n) = 8
SD
Standard Deviation
Sum of Values (Σx) = 427
Sum of Squares of Values (Σx 2 ) = 22805
Use the F key to enter the SD Mode when you want to perform statistical calculations using standard deviation.
SD .................................... F 2 (fx-95MS)
F F 1 (Other Models)
• Always start data input with A B 1 (Scl) = to clear statistical memory.
• Input data using the key sequence shown below. S
• Input data is used to calculate values for n, Σx, Σx2, o, σn and σn-1, which you can recall using the key operations noted nearby.
To recall this type of value:
Perform this key operation:
Σx2
Σx
n o σn σn-1 AU1
AU2
AU3
AX1
AX2
AX3
• Example: To calculate σnҀ1, σn, o, n, Σx, and Σx2 for the following data : 55, 54, 51, 55, 53, 53, 54, 52
In the SD Mode:
A B 1 (Scl) = (Stat clear)
55 S
n=
SD
1.
Each time you press S to register your input, the number of data input up to that point is indicated on the display (n value).
54 S 51 S 55 S
53 S S 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
AX2=
AX1=
AU3=
AU2=
AU1=
Data Input Precautions
• S S inputs the same data twice.
• You can also input multiple entries of the same data using A G. To input the data 110 ten times, for example, press 110 A G 10 S.
• 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 of the same data using A G 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 (Freq).
• You can then edit the displayed data, if you want. Input the new value and then press
Statistical
Calculations
REG
Population Standard Deviation (σn) = 1.316956719
Arithmetic Mean (o) = 53.375
Number of Data (n) = 8
SD
Standard Deviation
Sum of Values (Σx) = 427
Sum of Squares of Values (Σx 2 ) = 22805
Use the F key to enter the SD Mode when you want to perform statistical calculations using standard deviation.
SD .................................... F 2 (fx-95MS)
F F 1 (Other Models)
• Always start data input with A B 1 (Scl) = to clear statistical memory.
• Input data using the key sequence shown below. S
• Input data is used to calculate values for n, Σx, Σx2, o, σn and σn-1, which you can recall using the key operations noted nearby.
To recall this type of value:
Perform this key operation:
Σx2
Σx
n o σn σn-1 AU1
AU2
AU3
AX1
AX2
AX3
• Example: To calculate σnҀ1, σn, o, n, Σx, and Σx2 for the following data : 55, 54, 51, 55, 53, 53, 54, 52
In the SD Mode:
A B 1 (Scl) = (Stat clear)
55 S
n=
SD
1.
Each time you press S to register your input, the number of data input up to that point is indicated on the display (n value).
54 S 51 S 55 S
53 S S 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
AX2=
AX1=
AU3=
AU2=
AU1=
Data Input Precautions
• S S inputs the same data twice.
• You can also input multiple entries of the same data using A G. To input the data 110 ten times, for example, press 110 A G 10 S.
• 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 of the same data using A G 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 (Freq).
• You can then edit the displayed data, if you want. Input the new value and then press