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Dmitry_Shevchenko [17]
3 years ago
15

HELP, I NEED IT ASAP!!!!!!!!!!!

Mathematics
2 answers:
Rom4ik [11]3 years ago
6 0

Answer:

it is 1,3 and 4

Step-by-step explanation:

solmaris [256]3 years ago
4 0

Answer:

its A C D

Step-by-step explanation:

did it on edg and got it right

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The lifetimes of 10,000 watch batteries are normally distributed the mean lifetime is 500 days the standard deviation is 60 days
Lelu [443]
Given:
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σ = 60 days, the population standard deviation

Therefore
μ + σ = 560
μ - σ = 440
μ + 2σ = 620
μ - 2σ = 380
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The figure shown below illustrates the normal distribution
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About 95% of the total area lies in x = (μ-2σ, μ+2σ)
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If the radius of a circle is 6 centimeters, what is its area?
Serggg [28]

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