What is the arithmeticmean of 12,7,12,9,2,15,6,6,6,1,11 ?

The arithmeticmean of 12,7,12,9,2,15,6,6,6,1,11 is 7.90909…

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arithmeticmean of 12,7,12,9,2,15,6,6,6,1,11

average

12, 7, 12, 9, 2, 15, 6, 6, 6, 1, 11

7.90909 \dots

Solution steps

Compute the sum of the data set:

i = 1 \sum n a_{i} = 87

Compute the number of terms in the data set:

n = 11

Divide the sum by the number of terms and simplify:

7.90909 \dots

= 7.90909 \dots

62.3, 21, 5.4, - 23.2, - 12.6, 120.6

54, 55, 59, 61, 61, 62, 68, 70, 72

10 n C r 6

8 P 4

13 n C r 1

What is the arithmeticmean of 12,7,12,9,2,15,6,6,6,1,11 ?
The arithmeticmean of 12,7,12,9,2,15,6,6,6,1,11 is 7.90909…