Var - Tripod

Siga los pasos (números rojos) para calcular la Varianza (Var) y la desviación Estandard (St Dev)
x
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
(1)
(2)
(3)
Peso (kg)
(x
x - 1)
(x
x - 1)2
81
78
77
60
93
95
88
75
56
63
90
88
92
73
61
85
77
59
66
92
3.55
0.55
-0.45
-17.45
15.55
17.55
10.55
-2.45
-21.45
-14.45
12.55
10.55
14.55
-4.45
-16.45
7.55
-0.45
-18.45
-11.45
14.55
12.60
0.30
0.20
304.50
241.80
308.00
111.30
6.00
460.10
208.80
157.50
111.30
211.70
19.80
270.60
57.00
0.20
340.40
131.10
211.70
x =
77.45
Promedio
Sum(x - 1)2 =
Var =
Sum(x - 1)2
n-1
Var =
3164.95
(20 -1)
Var =
3164.95
(19)
Var =
166.58
3164.95
(4)
jgrr 2004
(5)
(6)
St Dev =
¶ Var
St Dev =
¶ 166.58
St Dev =
12.91