What is the arithmeticmean of 2,4,5,6,7,9,11,12,12,12,12,13,15,17,17,21,22,30 ?

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arithmeticmean of 2,4,5,6,7,9,11,12,12,12,12,13,15,17,17,21,22,30

average

2, 4, 5, 6, 7, 9, 11, 12, 12, 12, 12, 13, 15, 17, 17, 21, 22, 30

12.61111 \dots

Solution steps

Compute the sum of the data set:

i = 1 \sum n a_{i} = 227

Compute the number of terms in the data set:

n = 18

Divide the sum by the number of terms and simplify:

12.61111 \dots

= 12.61111 \dots

5 c 3

2, 3, 4, 5, 6

c (5, 3)

7, 14, 7, 2, 10, 9, 15, 4, 16, 6

6893, 6583, 5279, 3716, 3450, 2920

What is the arithmeticmean of 2,4,5,6,7,9,11,12,12,12,12,13,15,17,17,21,22,30 ?
The arithmeticmean of 2,4,5,6,7,9,11,12,12,12,12,13,15,17,17,21,22,30 is 12.61111…