What is the Chi-Squared distribution? Extensive video!
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0:16 Introduction
2:20 History
3:21 Derivation - where does it come from?
9:40 Mean and Standard deviation
15:48 Visualisation! Changing the degrees of freedom.
Note: videos on Chi-squared goodness of fit and Chi-squared test for independence to be uploaded by Jan 15, 2020.
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