Determine the area under the normal curve with mu 8 and, Ask an Expert

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Determine the area under the normal curve with mu = 8 and sigma = 3. If Mary gets 90 on a physics test where mean is 85 and standard deviation is 4.59, where does she stand in relation to her classmates? In the normal distribution with mu = 25 and sigma = 9, what number corresponds to z = -2?

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