Dec 1, 2022
Because it is variance and not the standard deviation. Complete derivation I have put here.
https://gist.github.com/azad-academy/2aab1dc217567977dcb6cad521e1c386
Written by J. Rafid Siddiqui, PhD
AI Research Scientist, Educator, and Innovator.Writes about Deep learning, Computer Vision, Machine Learning, AI, & Philosophy. bit.ly/MLMethodsBook