What is the arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9 ?

The arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9 is 12.33333…

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arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9

average

12.5, 12.7, 14.9, 11.3, 11.7, 10.9

12.33333 \dots

Solution steps

Compute the sum of the data set:

i = 1 \sum n a_{i} = 74

Compute the number of terms in the data set:

n = 6

Divide the sum by the number of terms and simplify:

12.33333 \dots

= 12.33333 \dots

3, 4, 5, 7, 7, 7, 9

138, 130, 135, 140, 120, 125, 120, 130, 130, 144, 143, 140, 130, 150

7 C 6

9, 8, 21, 8, 6, 10, 9, 7, 10, 7, 7

1 C n

What is the arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9 ?
The arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9 is 12.33333…