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Question
Find the mean of 4, 7, 12, 8, 11, 9, 13, 15, 2, 7.
Solution
Here n = 10
and ∑x = 4 + 7 + 12 + 8 + 11 + 9 + 13 + 15 + 2 + 7
∴ Mean `bar"X" = (sumx)/"n"`
= `(88)/(10)`
= 8·8.
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