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Find the arithmetic mean of the sales per day in a fair price shop in a week. ₹ 10000, ₹ 10250, ₹ 10790, ₹ 9865, ₹ 15350, ₹ 10110

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A.M = Sum of the observations / Number of observations

\(\overline {X}\)  = \(\cfrac{\sum X_i}{N}\) 

 = \(\cfrac{10000\,+10250\,+10790\,+9865\,+15350\,+10110}6\)

\(\cfrac{66365}6\)

∴ \(\overline {X}\) = 11060.83

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