How to Calculate Standard Deviation and Variance by Hand

In this video, we'll learn the steps to calculate the four main measures of variability by hand: sample variance, sample standard deviation, population variance, and population standard deviation. Doing so will also require us to find the sums of squares (SS), which we'll also discuss. PDF Guide illustrating how to calculate sample standard deviation: https://drive.google.com/open?id=1mMGU18h2-p_qWYSR-QyOwQUPEnxyQRDd PDF Guide illustrating how to calculate the other measures of variability: https://drive.google.com/open?id=125LNEn6eIuB91jQ1741afIN-3oaYj2ZG Link to full Google Drive folder of all PDF Guides I've written for stats: https://drive.google.com/open?id=1Dns_YLmZdYAbcFyp7IKrxRJsWGIhe9db