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Ciertos inspectores de salubridad examinan toneladas de mariscos: el inspector Z examinó 30 toneladas de las

cuales 10 toneladas no sirven, es decir, el 66.67% sirve; el inspector Y examina 50 toneladas de las cuales, el 80% sirven y el inspector X examina 80 toneladas, de las cuales, el 50% se encuentran en buenas condiciones. Encuentre la tasa promedio positiva de los tres inspectores.

tasa promedio positiva= 1.66

tasa promedio positiva= 1

tasa promedio positiva= 0.625

tasa promedio positiva= 0.375

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