Ex 13.2, 7 - Chapter 13 Class 11 Statistics
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
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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