Standard Deviation and Variance
numiqo
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April 23, 2023
numiqo
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Hi! We’re Dr. Hannah Volk-Jesussek and Dr. Mathias Jesussek, and our mission is to make statistics simple and approachable for everyone. On this channel, we break down fundamental statistical concepts into easy-to-understand explanations. Plus, we introduce you to numiqo – a powerful yet user-friendly tool to help you effortlessly analyze your data. Let’s make statistics less intimidating and more empowering, one step at a time! Our channel is also available in other languages: -German www.youtube.com/@numiqo_de -Spanish www.youtube.com/@numiqo_es
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Video Description
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://numiqo.com/statistics-calculator/descriptive-statistics/standard-deviation-and-variance-calculator ► Tutorial Standard Deviation and Variance https://numiqo.com/tutorial/dispersion-parameter ► E-BOOK https://numiqo.com/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
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