Question 338758
To find the mean, add up all of the numbers and divide the sum by the number of numbers (which in this case is 9).

{{{Mean=(6.3+6.6+6.7+7.1+7.3+7.5+7.8+7.8+7.8)/9=64.9/9=7.21111111111111}}}


So the mean is 7.21111111111111



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