Standard Deviation and Variance

Standard Deviation and Variance

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Standard Deviation and Variance
What is the standard deviation? And what is the difference to the variance? The standard deviation is a measure that indicates how much data scatter around the mean! The standard deviation is the quadratic mean of the distance from the mean. The variance now is the squared standard deviation. ► Online calculator Standard Deviation and Variance https://datatab.net/statistics-calculator/descriptive-statistics/standard-deviation-and-variance-calculator ► Tutorial Standard Deviation and Variance https://datatab.net/tutorial/dispersion-parameter ► E-BOOK https://datatab.net/statistics-book 00:00 What is the standard deviation? 00:12 Standard deviation example 01:46 Equation standard deviation 02:51 Arithmetic Mean vs. Quadratic Mean 03:26 1/n vs 1/(n-1) Different equations for the standard deviation 04:42 Difference Standard Deviation and Variance