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You can use Excel or calculate by hand. The table below brings the time spent (in minutes) on the graded practice exam one and the

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You can use Excel or calculate by hand. The table below brings the time spent (in minutes) on the graded practice exam one and the scores of 5 randomly selected ECN 221 online students. time spent (in Grade (out of 10) mins) 8.5 5 13.8 5 21.9 9 31.8 6 54.7 10 Calculate the SD for the variable time spent in minutes. Use one decimal place. E.g., 1.2 in all your calculations

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