Example 4 - Find mean deviation - Chapter 15 Class 11 - Mean deviation about mean - Discrete Frequency

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  1. Chapter 15 Class 11 Statistics
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Example 4 Find mean deviation about the mean for the following data : First we will calculate mean Mean deviation about mean = ﷮﷮𝑓𝑖 𝑥𝑖 − 𝑥﷯﷯﷯﷮ ﷮﷮𝑓𝑖﷯﷯ Putting ﷮﷮𝑓𝑖 𝑥𝑖 − 𝑥﷯﷯﷯ = 92 , ﷮﷮𝑓𝑖﷯ = 40 M.D. ( 𝑥﷯) = 1﷮40﷯ × 92 = 2.3

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