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    Percentile of a normal distribution

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    Calcium levels in people are normally distributed with a mean of 9.4 mg/dL and a standard deviation of .3 mg/dL. Individuals with calcium levels in the bottom 15% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.

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    Solution Summary

    This solution shows how to calculate a percentile from a given normal distribution.