43,45,47,48,49,49,49,50,50,50,50,50,51,52,52,52,52,52,52,53,53,53,54,54,54,54,55,55,56,57.
x= ∑X/N = 1544/30
X=51.46 66
Me= 78
Mo= No hay
Rango = ( 57 - 43 ) = 14 Rango = 14
S2 = ∑ ( X - X)2/N Desviacion tipica
S2= 297.4662/30 S= r. cuadrada S2 = 9.9155
S2= 9.9155 S= 3.1488
Coeficiente de variabilidad
CV= S/X
CV = 3.1488/51.4666 = 0.0611 0.0611 = 6.11 %
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