What is the arithmeticmean of 12.5,9.8,13.5,11.2,12.3,14.2,11.7,9.8,12.6,10.4 ?

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arithmeticmean of 12.5,9.8,13.5,11.2,12.3,14.2,11.7,9.8,12.6,10.4

average

12.5, 9.8, 13.5, 11.2, 12.3, 14.2, 11.7, 9.8, 12.6, 10.4

11.8

Solution steps

Compute the sum of the data set:

i = 1 \sum n a_{i} = 118

Compute the number of terms in the data set:

n = 10

Divide the sum by the number of terms and simplify:

11.8

= 11.8

10 C 9

52 C 8

6, 10, 8, 7, 8

8, 5, 8, 5, 7, 8, 7

23 C 5

What is the arithmeticmean of 12.5,9.8,13.5,11.2,12.3,14.2,11.7,9.8,12.6,10.4 ?
The arithmeticmean of 12.5,9.8,13.5,11.2,12.3,14.2,11.7,9.8,12.6,10.4 is 11.8