Math, asked by karthirenu648, 8 months ago

sum of 20 observation=420. sum of positive deviation taken from mean= 180. find coefficient of deviation? a)3/7 b)60/7 c)9 d)21

Answers

Answered by baladesigns2007

4

Answer:

a. 7/3 is the answer

Step-by-step explanation:

Hope it helps :)

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