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According to a recent poll cholesterol levels in healthy adults are normally distributed with a mean of 209 mg/dL and a standard deviation of 35

According to a recent poll cholesterol levels in healthy adults are normally distributed with a mean of 209 mg/dL and a standard deviation of 35 mg/dL. A random sample of 42 healthy adults is selected. Find the probability that the total cholesterol level in the sample of 42 adults will be more than 8400.

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