No de clase
|
Clase ...............
|
Marca de clase (Mi) ................
|
Frecuencia
(Fi)
|
MiFi
|
(Mi-X)
|
(Mi-X)²
|
(Mi-X)².Fi
|
1
|
80-89
|
84.5
|
4
|
338
|
-32.833
|
1078.005
|
4312.0232
|
2
|
90-99
|
94.5
|
1
|
94.5
|
-22.833
|
521.2089
|
521.2089
|
3
|
100-109
|
104.5
|
9
|
940.5
|
-12.833
|
164.6858
|
1482.1730
|
4
|
110-119
|
114.5
|
23
|
2633.5
|
-2.833
|
8.0258
|
184.5954
|
5
|
120-129
|
124.5
|
11
|
1369.5
|
7.167
|
51.3658
|
565.0247
|
6
|
130-139
|
134.5
|
7
|
941.5
|
17.67
|
294.7058
|
2062.9412
|
7
|
140-149
|
144.5
|
5
|
722.5
|
27.167
|
738.0458
|
3690.2294
|
max: 149
min: 83
RANGO: Max-Min
RANGO= 149-83 = 66
RANGO= 149-83 = 66
K= 1+3.322 log(60)
K= 6.90 = 7
W= R/K
W= 66/7= 9.42 = 9
X= 7040/60= 117.333
Varianza
s² = 12818.1958/60-1= 12818.1958/59
s² = 217.2575
Desviación Estándar
ˠ =√s²
ˠ = √217.2575 = 14.7396
ˠ = 14.7396
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