Using mean calculate mean deviation:
X 57 40 42 45 47 50 51 54 55
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Explanation:
mean = sum of all observation/total number of observation
Now, mean =X+57+40+42+45+47+50+51+54+55/10
= 441/10
=44.1
I know only this much, Sorry if I'll able to solve I'll help up!!!
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