https://www.khanacademy.org/math/probability/xa88397b6:scatterplots/estimating-trend-lines/v/correlation-and-causality 2021-07-15T19:03:52Z Correlation and causality Understanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise) Sal Khan video https://cdn.kastatic.org/googleusercontent/5CfPXW2BNtAmRRtP9dG_YYdpR_lzzyb0FAtyPGpMonebKXfUYVJfUm7hqHf5RC027L-XXXtNedSPhQDJkXR3TT-b Correlation and causality Understanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise) https://cdn.kastatic.org/ka-youtube-converted/ROpbdO-gRUo.mp4/ROpbdO-gRUo.mp4 645 Interpretar gráficos de dispersión https://www.khanacademy.org/math/statistics-probability/describing-relationships-quantitative-data/introduction-to-scatterplots/a/constructing-and-interpreting-a-scatterplot 2021-04-29T07:52:14Z Positive and negative associations in scatterplots article https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/cc-8th-line-of-best-fit/v/estimating-the-line-of-best-fit-exercise 2023-05-12T21:01:01.897246564Z Estimating the line of best fit exercise The "line of best fit" is a line that shows the pattern of data points. If we can find a good line, it means there is a linear trend. If not, it means there is no linear trend. We can't ignore points that don't fit the trend. Sal Khan video https://cdn.kastatic.org/googleusercontent/yMNzEamJCQT7A1xvGsloyZpWmvtEQ2nBGFUkm3ccmtXOwVO0Q6DuShSdnqkmswqKPzYy2i8z1R8VYXresfBm2SU Estimating the line of best fit exercise The "line of best fit" is a line that shows the pattern of data points. If we can find a good line, it means there is a linear trend. If not, it means there is no linear trend. We can't ignore points that don't fit the trend. https://cdn.kastatic.org/ka-youtube-converted/ioieTr41L24.mp4/ioieTr41L24.mp4 77 Interpretar gráficos de dispersión https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/cc-8th-line-of-best-fit/e/plotting_the_line_of_best_fit 2026-03-31T14:59:02.026924717Z Eyeballing the line of best fit Given a random assortment of points, draw a line of best fit through them. Sid Patel exercise https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/cc-8th-line-of-best-fit/v/smoking-1945-extrapolation 2023-05-12T21:01:01.897246564Z Line of best fit: smoking in 1945 The scatter plot shows how many adults in America smoked from year to year. We can guess how many smoked in 1945 by drawing a line that slopes down through the points. Then we see how high the line would be 20 years earlier. Sal Khan video https://cdn.kastatic.org/googleusercontent/yZKpVENPaJ0cbI753S0lV0n5d0Bn6Hvs8N4MtCyo9VXE_X59LGtcs5xHl0jUv294K8q-S8pg6YeAVll59ZXn9-6d Line of best fit: smoking in 1945 The scatter plot shows how many adults in America smoked from year to year. We can guess how many smoked in 1945 by drawing a line that slopes down through the points. Then we see how high the line would be 20 years earlier. https://cdn.kastatic.org/ka-youtube-converted/d4WE4SnhBDU.mp4/d4WE4SnhBDU.mp4 287 Interpretar gráficos de dispersión https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/cc-8th-line-of-best-fit/e/linear-models-of-bivariate-data 2026-04-01T14:42:24.233450099Z Estimating slope of line of best fit Given a scatter plot, can you estimate the slope of the line of best fit that goes through the data points? pstinchcombe exercise https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/cc-8th-line-of-best-fit/e/equations-of-lines-of-best-fit-to-make-predictions 2023-12-11T22:13:00.981327266Z Estimating equations of lines of best fit, and using them to make predictions Practice estimating the equation of a line of best fit through data points in a scatter plot. Then, use the equation to make a prediction. Jeff exercise