Standard
Deviation Calculations
12.5
11.9
12.5
12.7
12.7
12.9
13.0
13.2
13.4
13.5
Raw data
(X-0)
12.5
- 12.83 = -0.33
11.9
- 12.83 = -0.93
12.5
- 12.83 = -0.33
12.7
- 12.83 = -0.13
12.7
- 12.83 = -0.13
12.9
- 12.83 = 0.07
13.0
- 12.83 = 0.17
13.2
- 12.83 = 0.37
13.4
- 12.83 = 0.57
13.5
- 12.83 = 0.67
(X-0)2
(-0.93)2 = 0.865
(-0.33)2 = 0.109
(-0.33)2 = 0.109
(-0.13)2 = 0.017
(-0.13)2 = 0.017
(0.07)2 = 0.005
(0.17)2 = 0.029
(0.37)2 = 0.137
(0.57)2 = 0.325
(0.67)2 = 0.449
2.062