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Mathematics, 16.12.2021 18:20 alexchou773pejk7x
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 68 miles per hour, with a standard deviation of 4 miles per hour. Estimate the percent of vehicles whose speeds are between 64 miles per hour and 72 miles per hour. (Assume the data set has a bell-shaped distribution.) Approximately % of vehicles travel between 64 miles per hour and 72 miles per hour.
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