HMKitchen123 HMKitchen123

19-05-2023
Mathematics

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When lauren runs the 400 meter dash, her finishing times are normally distributed with a mean of 88 seconds and a standard deviation of 2 seconds. if lauren were to run 42 practice trials of the 400 meter dash, how many of those trials would be between 83 and 84 seconds, to the nearest whole number?

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