The simplest way to truly understand #covariance and #variance, two of the frequently used concepts in #statistics and #datascience is to get an intuition beyond the mathematical equation.
I would really appreciate letting me know in a comment if my analogy and this explanation made sense for you. It helps me improve my content in the future.
Thank you for your #feedback!
Contents:
0:00 - Introduction
0:22 - Where does data variability come from?
1:53 - Variance as a variability measure
2:04 - Formula for Variance simply explained
4:16 - What is the relation between Variance and Covariance?
5:44 - Covariance with a real life example
6:26 - Formula for covariance step by step
10:42 - How does covariance measure the direction of relationship?
13:11 - From covariance to correlation
14:00 - Intervals for the strength of the correlation
14:32 - Variance vs Covariance comparison