Mathematics, 30.05.2020 00:57 loganyos

When Isabella runs the 400 meter dash, her finishing times are normally distributed with a mean of 77 seconds and a standard deviation of 0.5 seconds. Using the empirical rule, what percentage of races will her finishing time be between 76.5 and 77.5 seconds?

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When Isabella runs the 400 meter dash, her finishing times are normally distributed with a mean of 7...

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