Operation Manual

38 39
(4) (Error) 1 4 SD 1.4
(4) (Correct)
SD 0.
1
3 3 SD 12.
8 SD 0.8
(4) (Error) 6
SD 18.
(5) (Correct)
8 6 SD 12.
8 5 SD 17.
SD 17.
SD 0.635294117
SD 0.95390066
10. STATISTICAL CALCULATIONS10. STATISTICAL CALCULATIONS
The arithmetic mean x is defined as follows:
 You do not
, , , , , , need to use
in the sequence indicated.
Example: Find n, x & σ
n-1 on the basis of the following data: 1.2,
- 0.9 , -1.5, 2.7, -0.6, 0.5, 0.5, 0.5, 0.5, 1.3, 1.3, 1.3, 0.8, 0.8, 0.8, 0.8,
0.8.
1 2
9 SD 2.
(1) (Error) 2
5 SD -2.5
(1) (Correct)
SD 0.
1
5 SD 3.
2
7 SD 4.
(2) (Error)
SD 5.
(3) (Error) 1
6 SD 6.
(3) (Correct) 1
6 SD 5.
6 SD 6.
(2) (Correct) 4
SD 5.
5 SD 0.5
4
SD 9.
Σx
n