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

C (12, 9)

P (11, 8)

7.7, 8.4, 9, 8, 6.9

35 C 2

32 C 4

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