– E-16 –
STATISTICAL CALCULATIONS
Press @ Æ to select statistics mode.
The following statistics can be obtained:
x
–
Mean of samples (x data)
sx Sample standard deviation (x data)
σ
x Population standard deviation (x data)
n Number of samples
Σ
x Sum of samples (x data)
Σ
x
2
Sum of squares of samples (x data)
STAT
@Æ
0.
95 k
1.
80 * 2 k
3.
75 * 3 k
6.
50 k
7.
~
75.71428571
@p
12.37179148
n
7.
@z
530.
@w
41200.
£
13.3630621
L
178.5714286
DATA
95
80
80
75
75
75
50
x=
σx=
n=
Σx=
Σx
2
=
sx=
sx
2
=
Data Entry and Correction
Entered data are kept in memory until @ Æ or
F are pressed. Before entering new data, clear the
memory contents.
[Data Entry]
Data
k
Data
*
frequency
k (To enter multiples of the
same data)
[Data Correction]
Correction prior to pressing k:
Delete incorrect data with ª.
501E_en0610.pm65 06/10/2004, 13:5316
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