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Mathematics 9 Online
OpenStudy (anonymous):

What is the mean of this data set? 77, 85, 91, 79, 82, 88, 79

OpenStudy (anonymous):

581/7=83

OpenStudy (turingtest):

Mean is the average, so add the numbers up and divide by the number of entries: (77+85+91+79+82+88+79)/7

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