Posted inFun
Mathematical Magic Trick: 8 4-Digit Numbers Summing To 35712?
From reader Noble Abraham comes this question: Is it possible to create a pool of distinct four digit numbers, so that the sum of 8 randomly chosen numbers from this…
Posted inCulture Philosophy
The Obama-HHS Diktat On Contraceptive Coverage: Non-Religious Arguments Against It
The government has decided that citizens who agree to work for other citizens must be given "free" coverage for contraceptives and drugs for auto-abortions. The "free" is a misnomer. Actually,…
Posted inPhilosophy Statistics
Let’s Try This Time Series Thing Again: Part V
Part I, II, III, IV, V. We started by assuming each X was measured without error, that each observation was perfectly certain. This is not always so for real X.…
Posted inPhilosophy Statistics
Let’s Try This Time Series Thing Again: Part IV
Part I, II, III, IV, V. We have before us X1 to X156. We started by assuming that something, called T, caused these data to take the values it did.…
Posted inPhilosophy Statistics
Let’s Try This Time Series Thing Again: Part III
Part I, II, III, IV, V. The objection which will occur to those, Lord help them, who have had some statistical training is that "increased" means a combination of "linear…
Posted inPhilosophy Statistics
Let’s Try This Time Series Thing Again: Part II
Part I, II, III, IV, V. Before us are the observations X1 to X156. Recall we are assuming that each of these X has been measured without any error. Given…
Posted inStatistics
Let’s Try This Time Series Thing Again: Part I
This series originally began 5 February 2012. Part I, II, III, IV, V. We've gone on and on about how to think about time series, but we are having trouble…
Posted inPhilosophy Statistics
On Corrections In Science
Somebody attributed to Max Planck, a constant1 source of wisdom, the saying that science advances funeral by funeral. This is a pithy condensation of his more famous quotation: A new…