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When Annabelle runs the 400 meter dash, her finishing times are normally distributed with a mean of 62 seconds and a standard deviation of 0.5

When Annabelle runs the 400 meter dash, her finishing times are normally distributed with a mean of 62 seconds and a standard deviation of 0.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 68% of her finishing times in the 400 meter race.

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