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Weight of 15 persons is as follows: {:...

Weight of 15 persons is as follows:
`{:("Weight(kg)",20,28,34,39,42,50,53,54,59,64,72,74,74,78,79):}`
Find out mean weight, using Direct Method as well as Short-cut Method.

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The correct Answer is:
Weighted Mean = 54.67 kg
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TARUN JAIN & VK OHRI-MEASURES OF CENTRAL TENDENCY - ARITHMETIC MEAN-4. Essential Practicals
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