A non-parametric test of sample rank correlation coefficient is explained. Other Non-parametric tests Kruskal-Wallis H Test: https://youtu.be/FaJU-ur9fSI Sample Rank Correlation-Coefficient: https://youtu.be/USqlzYkAdAM Mann-Whitney U-test: https://youtu.be/eZP1nFlVejM Wilcoxon Signed-Rank Test: https://youtu.be/sJvRbLel4oM Sign Test: https://youtu.be/i2hExvzkuGI