Econometrics
Economics meets statistics, and things get interesting. Posts on the methods used to test economic theory against real data — causality, regression, and all the assumptions that come with it.
The Simple Regression Model: 10 Exercises with Full Solutions
Ten worked exercises on the simple regression model, from computing the OLS slope and intercept by hand to R-squared, the SLR assumptions, unbiasedness, and standard errors. Try each, then check.
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