CBSE Notes, Papers, NCERT Solutions

Resources

1.Variance 1.Variance 2.Mean Deviation about Mean for Grouped Data 2.Mean Deviation about Mean for Grouped Data 3.Mean Deviation for Ungrouped Data 3.Mean Deviation for Ungrouped Data 4.Analysis of Frequency Distributions 4.Analysis of Frequency Distributions 5.Shortcut Method To Find Variance and Standard Deviation 5.Shortcut Method To Find Variance and Standard Deviation 6.Standard Deviation 6.Standard Deviation 7.Introduction to Dispersion 7.Introduction to Dispersion