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2
[x
]
[=]
Example: 8! (= 1 x 2 x 3 x ....... x 7 x 8) = 40320
Press
[8]
[SHIFT]
[x!]
STANDARD DEVIATIONS
• Press [ SHIFT ] [ SD ] to set the calculator to the statistical calculation
mode.
• Press [ SHIFT ] [ CAD ] to clear statistical memory before you start a
new calculation.
Example: Find n, Σ x
3, 4, 4, 7, 8, 9
Press
[SHIFT] [SD]
[SHIFT] [CAD]
[2] [x] [3] [DATA]
[3] [DATA]
[4] [x] [2] [DATA]
[5] [DATA]
[DEL]
[7] [DATA]
[8] [DATA]
[9] [DATA]
[n]
Display
2F
2
, Σ x, x, σ
, and σ
n–1
Display
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
-
E18-
DEG
Enter operation,
900.
show result
DEG
Enter operation,
1023.
show result
DEG
Enter value
8.
DEG
Enter operation,
show symbol
DEG
Enter operation,
40320.
show result
based on the data: 2, 2, 2,
n
DEG
Set to statistical
0.
mode
DEG
Clear all data
0.
DEG
Enter data 1, 2, 3
3.
(Value: 2)
DEG
Enter data 4
4.
(Value: 3)
DEG
Enter data 5, 6
6.
(Value: 4)
DEG
Enter data 7
7.
(Value: 5)
DEG
Cancel data 7
6.
DEG
Enter data 7
7.
(Value: 7)
DEG
Enter data 8
8.
(Value: 8)
DEG
Enter data 9
9.
(Value: 9)
DEG
Number of data
9.
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