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Mathematics, 22.04.2021 20:30 heavendl13

When Hudson runs the 400 meter dash, his finishing times are normally distributed with a mean of 70 seconds and a standard deviation of 2 seconds. If Hudson were to
run 22 practice trials of the 400 meter dash, how many of those trials would be
between 71 and 73 seconds, to the nearest whole number?

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