Question

calculate mean from the given data set: 10, 12, 14, 15, 16, 17, 18, 19, 20

Answer 1

The mean is 47/3 or 15.66666667

Answer 2

first add all the numbers then you have to divide it from 9

10+12+14+15+16+17+18+19+20/9

141/9
or
15.6666

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