The cholesterol levels among females aged 50 and over are, Ask an Expert

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According to her doctor, Mrs. Brown's cholesterol level is 10% higher than only of the females 50 aged and over. The cholesterol levels among females aged 50 and over are approximately normally distributed with a mean of 250 mg/dL and a standard deviation of 30 mg/dL. What is Mrs. Brown's cholesterol level?

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