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प्रश्न
Find the mean deviation about the mean for the data.
38, 70, 48, 40, 42, 55, 63, 46, 54, 44
उत्तर
Arithmetic mean
= 12 + 20 + 2 + 10 + 8 + 5 + 13 + 4 + 4 + 4 + 6
= 84
∴ MD
=
= 8.4
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