We've done regression a hundred times, but it isn't sticking. That means my explanations are failing. Let me try again. Everybody knows normal distributions, i.e. bell-shaped curves: in shorthand N(m,s),…

Remember our discussion of the Spurious Correlations website, nicely paired with the Regression Isn't What You Think post? The two keys points of both are the (a) "statistically significant" correlations,…

The full version of the headline is this: Current evidence does not clearly support cardiovascular guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of total saturated…

A reader asked about my take on the Kaya wars that are flaming at Anthony Watts's place. Here is the form of the Kaya Identity, which is to say, the…

Temperature causes Here is an atmospheric monthly average temperature series: T = (61, 69, 69, 70, 72, 65, 63) (all F). What caused the temperature to take the value T1…