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Question

1. Find the mean and median of first 12 odd composite numbers

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Solution

Dear Student,

The first 12 odd composite numbers :9, 15, 21, 25, 27, 33, 35, 39, 45, 49, 51 and 55.Now, sum of numbers = 9 + 15 + 21 + 25 + 27 + 33 + 35 + 39 + 45 + 49 + 51 + 55 = 404Now, mean = sum of 12 observations12 = 4041233.67Now, number of oservations = n = 12 evenMedian = value of n2th observation + value of n2 + 1th observation2=value of 6th observation + value of 7th observation2=33 + 352=682=34

Regards!

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