Ex 13.1, 10 - Chapter 13 Class 11 Statistics

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Ex 13.1, 10 - Find mean deviation Height (in cms) number boys - Ex 13.1

part 2 - Ex 13.1, 10 - Ex 13.1 - Serial order wise - Chapter 13 Class 11 Statistics

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Ex 13.1, 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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