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प्रश्न
Find the mean of 4, 7, 12, 8, 11, 9, 13, 15, 2, 7.
उत्तर
Here n = 10
and ∑x = 4 + 7 + 12 + 8 + 11 + 9 + 13 + 15 + 2 + 7
∴ Mean
=
= 8·8.
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