User's Guide

55
55
Example: T
o calculate s
x
, σ
x
, x
-
, n , Σ x , and Σ x
2
for the following data :
55, 54, 51, 55, 53, 53, 54, 52
fx-82MS/fx-85MS/fx-300MS/fx-350MS:
In the SD Mode:
(CLR) (Scl) (Stat clear)
Each time you press to register your input, the number of data input up
to that point is indicated on the display ( n value).
54 51 55 53 54 52
Sample Standard Deviation (s
x
) = 1.407885953
(S-VAR) (s
x
)
1.407885953
Population Standard Deviation ( σ
x
) = 1.316956719
(S-VAR) ( σ
x
)
1.316956719
Arithmetic Mean ( x
-
) = 53.375
(S-VAR) ( x
-
)
53.375
Number of Data ( n ) = 8
(S-SUM) ( n )
8.
Sum of Values (Σ x ) = 427
(S-SUM) (Σ x )
427.
Sum of Squares of Values (Σ x
2
) = 22805
(S-SUM) (Σ x
2
)
22805.
fx-220 PLUS:
In the SD Mode:
(Scl) (Stat clear)
Each time you press to register your input, the number of data input up
to that point is indicated on the display ( n value).
54 51 55 53 54 52
Sample Standard Deviation (s
x
) = 1.407885953
(s
x
)
1.407885953
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