In a school, the average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg If the average weight of the whole class is 23 25 kg, what could be the possible strength of boys and girls respectively in the same class A 18 and 19 B 13 and 27 C 16 and 15 D 15 ...

In a school, the average weight of boys in a class is 30 kg and the...

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Understanding Basic Statistics

ISBN: 9781111827021

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Authors: Charles Henry Brase, Corrinne Pellillo Brase

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