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IrinaVladis [17]
3 years ago
9

A contracter hires 4 workers for a construction project

Mathematics
1 answer:
katovenus [111]3 years ago
5 0

Answer:

???

Step-by-step explanation:

so whats the question.

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A laptop company claims up to 11.0 hours of wireless web usage for its newest laptop battery life. However, reviews on this lapt
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Step-by-step explanation:

given that a  laptop company claims up to 11.0 hours of wireless web usage for its newest laptop battery life. However, reviews on this laptop shows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normal distribution with mean 10.5 hours and standard deviation 27 minutes.

convert into same units into hours.

X is N(10.5, 0.45)

a)  the probability that the battery life is at least 11.0 hours

P(X\geq 11)\\\\=1-0.8667\\=0.1333

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d)  The time of use that is exceeded with probability 0.9 is

is 90th percentile = 10.885

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3 years ago
Please please find the area for this polygon!
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Answer:

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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