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A frustrated commuter conducted an IQ exam on a random sample of people who play music through their phones speaker on the subway. His results

A frustrated commuter conducted an IQ exam on a random sample of people who play music through their phones speaker on the subway. His results are below IQ = 75 80 69 71 84 74 82 68 98 What is the standard deviation of the IQs of these subjects? Selected Answer: Correct 9.43 Correct Answer: Correct 9.43

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