Question

Asked Feb 28, 2020

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Calculate the following probabilities, assuming that X is normally distributed with mean μ = 40 and

σ = 5.

(a) P(X ≥ 45) (b) P(0 ≤ X ≤ 40)

Step 1

From the given information,

Consider,

*X* be random variable that follows normal distribution with mean of 40 and standard deviation of 5.

a)

The required probability can be calculated as:

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