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Given a normal distribution with population standard deviation of 2 and a mean of μ =...

Given a normal distribution with population standard deviation of 2 and a mean of μ = 10. If a random sample of size 69 is drawn, find P(10 ≤ x ≤ 12).
Round to three decimal places.

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Answer #1

the sample of size (n) = 69 will follow normal distribution with :-

[ using standard normal table]

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