Example 11 - Chapter 13 Class 11 Statistics

Last updated at Dec. 16, 2024 by

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Example 11 Find the standard deviation for the following data: Std. Deviation(σ) = 1﷮N﷯ ﷮N ﷮﷮fixi2 −( ﷮﷮fixi)2﷯﷯ ﷯ = 1﷮48﷯ ﷮48×9652 − 614﷯2﷯ = 1﷮48﷯ ﷮463296−376996﷯ = 1﷮48﷯ ﷮86300﷯ = 1﷮48﷯ x 293.77 = 6.12 Therefore, standard deviation (σ ) = 6.12

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo