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MEDIDAS DE DISPERSION

MEDIDAS DE DISPERSION. DESVIACION MEDIA. Promedio de las desviaciones. (valores absolutos). DM =. DESVIACIONES = Diferencia entre cada uno de los datos y la media. V A R I A N Z A. Sumatoria de los cuadrados de las desviaciones,

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MEDIDAS DE DISPERSION

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  1. MEDIDAS DE DISPERSION

  2. DESVIACION MEDIA Promedio de las desviaciones (valores absolutos) DM = DESVIACIONES = Diferencia entre cada uno de los datos y la media

  3. V A R I A N Z A Sumatoria de los cuadrados de las desviaciones, entre la cantidad de datos menos uno. var =

  4. DESVIACION ESTANDAR Raíz cuadrada de la varianza Raíz cuadrada de la sumatoria de los cuadrados de las desviaciones, entre la cantidad de datos menos uno.  =

  5. E J E M P L O

  6. 1.2355 DM = n = 15 18.533 X= 4.467

  7. 1.2355 DM = var = n = 15 X= 4.467

  8. 1.2355 DM = 2.2667 var=  = 1.5055 n = 15 31.7334 X= 4.467

  9. EJERCICIO DATOS DESVIACION MEDIA = 1.22 VARIANZA = 1.9579 DESVIACION ESTANDAR = 1.3992

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