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Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 8 beats/ minute. What

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Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 8 beats/ minute. What proportion of healthy adults have pulse rates that are at most 84 beats/ minute? Round your answer to at least four decimal places.

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