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Ex 15.1, 10 - Find mean deviation Height (in cms) number boys - Mean deviation about mean - Continuous frequency distibution

Ex 15.1,  10 - Chapter 15 Class 11 Statistics - Part 2


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Ex 15.1, 10 Find the mean deviation about the mean for the data Now, ∑128▒𝑓𝑖 = 100 ∑128▒𝑓𝑖 |𝑥𝑖 −𝒙 ̅ | = 1128.8 Mean deviation about mean = (∑▒〖 𝑓_𝑖 |𝑥𝑖 −𝒙 ̅ | 〗)/𝑓_𝑖 = 1128.8/100 = 11.288

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