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LEY DE STURGES
TALLER DE ESTADISTICA
Suponga que un investigador desea determinar como varia el peso de un grupo de estudiantes de
primer semestre de una universidad. Selecciona una muestra de 50 estudiantes y registra sus pesos
en kilogramos, los datos obtenidos fueron los siguientes:
Para construir la tabla de datos no agrupados se debe calcular primero lo siguiente:
Número de clases o intervalos:
k = 1+3,322 log 10 𝑛
k = 1+3,322 𝑙𝑜𝑔10 50 = 6,64 ≈ 7
Rango: (dato máximo – dato mínimo)
72 – 53 = 19
Ancho de clase: (tamaño del intervalo)
l = rango / k
= 19/7= 2,71 ≈ 3
Frecuencia
absoluta
Frecuencia
absoluta
acumulada
Frecuencia
relativa
Frecuencia
relativa
acumulada
Pesos (kg) ni Ni hi Hi
53-55 2 2 4,00% 4,00%
56-58 5 7 10,00% 14,00%
59-61 9 16 18,00% 32,00%
62-64 15 31 30,00% 62,00%
65-67 12 43 24,00% 86,00%
68-70 5 48 10,00% 96,00%
71-73 2 50 4,00% 100,00%
50 100,00%

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Ley de sturges

  • 1. LEY DE STURGES TALLER DE ESTADISTICA Suponga que un investigador desea determinar como varia el peso de un grupo de estudiantes de primer semestre de una universidad. Selecciona una muestra de 50 estudiantes y registra sus pesos en kilogramos, los datos obtenidos fueron los siguientes: Para construir la tabla de datos no agrupados se debe calcular primero lo siguiente: Número de clases o intervalos: k = 1+3,322 log 10 𝑛 k = 1+3,322 𝑙𝑜𝑔10 50 = 6,64 ≈ 7 Rango: (dato máximo – dato mínimo) 72 – 53 = 19 Ancho de clase: (tamaño del intervalo) l = rango / k = 19/7= 2,71 ≈ 3 Frecuencia absoluta Frecuencia absoluta acumulada Frecuencia relativa Frecuencia relativa acumulada Pesos (kg) ni Ni hi Hi 53-55 2 2 4,00% 4,00% 56-58 5 7 10,00% 14,00% 59-61 9 16 18,00% 32,00% 62-64 15 31 30,00% 62,00% 65-67 12 43 24,00% 86,00% 68-70 5 48 10,00% 96,00% 71-73 2 50 4,00% 100,00% 50 100,00%