Question: Let X be a normal random variable with mean 12 and standard deviation 3. Calculate the following probabilities (a) P(X 4.5); (d) P(-1.5

Let X be a normal random variable with mean 12 and

Let X be a normal random variable with mean 12 and standard deviation 3. Calculate the following probabilities (a) P(X 4.5); (d) P(-1.5

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