https://www.khanacademy.org/math/statistics-probability/describing-relationships-quantitative-data/regression-library/v/introduction-to-residuals-and-least-squares-regression 2022-10-07T00:58:19.561984208Z Introduction to residuals and least squares regression Introduction to residuals and least squares regression video https://cdn.kastatic.org/ka_thumbnails_cache/a2910682-b490-4ceb-83a9-b4e04af7fb1e_1280_720_base.png Introduction to residuals and least squares regression Introduction to residuals and least squares regression https://cdn.kastatic.org/ka-youtube-converted/yMgFHbjbAW8.mp4/yMgFHbjbAW8.mp4 460 Competing function model validation https://www.khanacademy.org/math/ap-statistics/bivariate-data-ap/xfb5d8e68:residuals/e/calculating-interpreting-residuals 2026-06-16T15:55:43.561813682Z Calculate and interpret residuals Practice calculating residuals in scatterplots and interpreting what they measure. Jeff Dodds exercise https://www.khanacademy.org/math/algebra-1-illustrative-math/x6418b49dfbc9d0c9:quadratic-functions-intro/x6418b49dfbc9d0c9:how-does-it-change/v/analyzing-data-to-model-functions 2025-09-11T05:00:47.574338337Z Analyzing data to model functions Sal demonstrates the process of matching a table of values to a specific function type: linear, quadratic, or exponential. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/93e3ecde-12a2-4e42-96c7-b728361e0829_1280_720_base.png Analyzing data to model functions Sal demonstrates the process of matching a table of values to a specific function type: linear, quadratic, or exponential. https://cdn.kastatic.org/ka-youtube-converted/v7gmPAARnSw.mp4/v7gmPAARnSw.mp4 362 Competing function model validation https://www.khanacademy.org/math/statistics-probability/advanced-regression-inference-transforming/nonlinear-regression/e/fitting-functions-to-scatter-plots 2026-06-16T15:55:43.561813682Z Fit quadratic and exponential functions to scatter plots Determine if a quadratic or exponential model fits a data set better, then use the model to make a prediction. Ben Stenhaug exercise