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Assume that x has a normal distribution with the specified mean and standard deviation. Find the...

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

A) μ = 6.0; σ = 1.2

P(7 ≤ x ≤ 9) =

B) μ = 6.0; σ = 1.2

P(7 ≤ x ≤ 9) =

C) μ = 100; σ = 11

P(x ≥ 120) =

D) μ = 3.0; σ = 0.37

P(x ≥ 2) =

Math   Statistics-And-Probability   
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