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The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. What is the probability that a battery you buy lasts at most…

The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. What is the probability that a battery you buy lasts at most…
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The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. What is the probability that a battery you buy lasts at most 100 hours? Standardize the variable.

User Hamzahik
by
8.2k points

2 Answers

6 votes

Answer:

1-P(z<1.75) D in EDG

Explanation:

For the second part !!

User Tjirp
by
8.2k points
4 votes

Answer:

x = 100 is equivalent to z = -1.75

Explanation:

User Rogier Spieker
by
7.4k points
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