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The speeds for eight more vehicles are listed. The mean speed of a sample of vehicles...

The speeds for eight more vehicles are listed. The mean speed of a sample of vehicles along a stretch of highway is 67 miles per hour, with a standard deviation of 4 miles per hour determine which of the data entries are unusual. Are any of the data entries very unusual? Explain your reasoning.

70, 78, 62, 71, 65, 76, 82, 64

Math   Statistics-And-Probability   
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