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Take 15 as assumed average and use short cut method. Size= 20, 19, 18, 17, 16, 15, 14, 13, 12, 11. Frequency=1, 2, 4, 8, 11, 10, 7, 4, 2, 1.

Posted by Yashu Chawla 6 years, 2 months ago

CBSE > Class 11 > Economics

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Himanshu Rajput 4 years, 9 months ago

15.54

17Thank You

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