The mean total serum cholesterol level in women free of cardiovascular disease is 205 with a standard deviation of 19.2. What proportion of women have total serum cholesterol levels exceeding 200? If values between the 5th and 95th percentiles are considered "normal," what is the upper limit of normal? If a sample of 10 women are analyzed, what is the probability that their mean total serum cholesterol levels exceeds 210?

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