Ever wondered how to measure the chaos in your data? Enter standard deviation—the gold standard for gauging variability. Combine it with the mean (check my guide to calculating the mean), and you’ve got a dynamic duo to decode any dataset. Whether you’re a Stats 101 student tackling your first problem set or a master’s grad …
Understanding the Measure of Central Tendency: A Friendly Guide to Calculating the Mean
Statistics can feel like a maze sometimes, but the mean? That’s your trusty compass. It’s just the average of a data set—a simple way to find the central point of your numbers. I’ve always found it handy, whether I’m summarizing data as a data scientist or figuring out my monthly coffee spending (which, trust me, …
Residual in Regression Analysis
Residual is the vertical distance between the observed actual value (dependent variable) and the predicted value (generated by regression equation). Formula to calculate Residual e = y – ŷ Here,e = Residualy = Observed Actual valueŷ = Predicted value 1) Observed Value (y) higher than the Predicted value (ŷ) – Positive Residual 2) Predicted value …