Analysis of the cap S sub x x end-sub Formula in Statistical Variance and Regression cap S sub x x end-sub represents the corrected sum of squares for a variable
"Technically, yes. But mathematically, look at what it's actually doing." Jonah circled the $(x_i - \barx)$ part. "This is the deviation. The distance of every data point from the center of the universe—which, for this dataset, is the mean."
When we take a sample, we are likely to miss the extreme values of the total population. If we divided by
