Statistics
The science of collecting, summarizing, and drawing conclusions from data.
Subcategories
- Probability Theory — The mathematics of uncertainty and random phenomena.
Articles (4)
- What Is Linear Regression? How Least Squares Works
Linear regression fits a straight line through data to predict one quantity from another, and least squares picks the line with the smallest squared errors. - The Normal Distribution: The Bell Curve Explained
The normal distribution, or bell curve, is symmetric around its mean. Learn the 68-95-99.7 rule, z-scores, why it appears so often, and where it fails. - Correlation and Causation
The statistical relationship between variables versus the proof that one causes the other, and why correlation alone cannot establish causation. - Standard Deviation
A measure of how spread out a set of values is around its mean, expressed in the same units as the data.