matiashuenchumilla matiashuenchumilla
  • 19-04-2024
  • Mathematics
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UN fabricante de pilas quiere conocer cual es la duracion media de sus productos; para ello toma una muestra de 100 pilas y estas dan un promedio de 18 horas. ¿Cuál es la duración media de la primera pila si la suma de las 99 restantes es 1780 horas?

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