What is the arithmeticmean of 38,23,38,15,12,19,12,21,22,31,13,18,21,17,15 ?

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arithmeticmean of 38,23,38,15,12,19,12,21,22,31,13,18,21,17,15

average

38, 23, 38, 15, 12, 19, 12, 21, 22, 31, 13, 18, 21, 17, 15

21

Solution steps

Compute the sum of the data set:

i = 1 \sum n a_{i} = 315

Compute the number of terms in the data set:

n = 15

Divide the sum by the number of terms and simplify:

21

= 21

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

7, 4, 2, 5, 8, 2, 4, 8, 6, 3

10 C 0

C (15, 3)

13, 14, 32, 53, 53, 53, 58, 64, 65, 67, 69, 69, 70, 72, 73

What is the arithmeticmean of 38,23,38,15,12,19,12,21,22,31,13,18,21,17,15 ?
The arithmeticmean of 38,23,38,15,12,19,12,21,22,31,13,18,21,17,15 is 21