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Mashcka [7]
3 years ago
14

En una prueba de duración para determinar la vida útil de un nuevo tipo de lámpara lanzada al mercado, los datos de la muestra s

e distribuyeron de manera casi normal. Se calculó una vida útil
promedio de 7000 hrs. y una desviación de 520 hrs. Halla el porcentaje de lámparas que tendrán
una vida útil
a) entre la media y 7600hrs.
b)entre 6500 hrs y 7600 hrs.
c) mas de 7600
Mathematics
1 answer:
diamong [38]3 years ago
6 0

Answer:

no habla espenol :((

Step-by-step explanation:

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