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Ex 15.2, 7 - Find mean and variance for frequency distribution - Standard deviation and variance - Continuous frequency (grouped data)

Ex 15.2,  7 - Chapter 15 Class 11 Statistics - Part 2


Transcript

Ex15.2, 7 Find the mean and variance for the following frequency distribution. ( )^2 = 68280 N = = 30 Variance (" " ^2) = 1/ ( )^2 = 1/30 68280 = 2276

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.