Day 4

Covariance:-

Article: https://www.statisticshowto.com/covariance/
Covariance Video: https://www.youtube.com/watch?v=qtaqvPAeEJY&ab_channel=StatQuestwithJoshStarmer
Covariance Matrix: https://www.youtube.com/watch?v=152tSYtiQbw&ab_channel=ritvikmath
np.cov() Doc: https://numpy.org/doc/stable/reference/generated/numpy.cov.html

Correlation:-

Ful Correlation(Pearson Coefficient): https://www.youtube.com/watch?v=xZ_z8KWkhXE&ab_channel=StatQuestwithJoshStarmer
R-squared(Optional): https://www.youtube.com/watch?v=2AQKmw14mHM&ab_channel=StatQuestwithJoshStarmer
Spearman Rank Coefficient: https://www.statisticshowto.com/spearman-rank-correlation-definition-calculate/
Uses, Limitation and Corr vs Causation: https://www.simplypsychology.org/correlation.html
Correlation vs Causation: https://www.youtube.com/watch?v=X42aAg32rhk&ab_channel=Udacity
scipy.stats.pearsonr Doc: https://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.stats.pearsonr.html
scipy.stats.spearmanr Doc: https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.spearmanr.html

Test of Normality:-

QQ Plot: https://www.youtube.com/watch?v=okjYjClSjOg&ab_channel=StatQuestwithJoshStarmer
Shapiro Wilk Test: https://www.youtube.com/watch?v=dRAqSsgkCUc&ab_channel=MatthewE.Clapham
Kolmogorov Smirnov Test: https://www.statisticshowto.com/kolmogorov-smirnov-test/
KS Test Video: https://www.youtube.com/watch?v=ZO2RmSkXK3c&ab_channel=MatthewE.Clapham
Lilliefors Test: https://www.statisticshowto.com/lilliefors-test/
One for All Code Guide: https://towardsdatascience.com/6-ways-to-test-for-a-normal-distribution-which-one-to-use-9dcf47d8fa93

Anscombe's Quartet:

Article: https://medium.com/datadriveninvestor/anscombes-quartet-12649db7eac0
Article 2: https://heap.io/blog/data-stories/anscombes-quartet-and-why-summary-statistics-dont-tell-the-whole-story
Video: https://www.youtube.com/watch?v=sfH43temzQY&ab_channel=jbstatistics