Monthly Archives: November 2016

A nice chart of univariate distribution relationships

Advertisements

Posted in Probability | Tagged , | Leave a comment

Big Data for Volatility vs.Trend

So different aspects of Big Data — in this case dense vs. tall — are of different value for different things.  Dense data promote accurate volatility estimation, and tall data promote accurate trend estimation. More (No Hesitations blog)

Posted in Statistics | Tagged , , | Leave a comment

The limitations of randomised controlled trials

In recent years, the use of randomised controlled trials has spread from labour market and welfare programme evaluation to other areas of economics (and to other social sciences), perhaps most prominently in development and health economics. This column argues that … Continue reading

Posted in Statistics, Uncategorized | Tagged , , | Leave a comment

Very brief notes on measures: From σ-fields to Carathéodory’s Theorem

Definition 1. A -field is a non-empty collection of subsets of the sample space closed under the formation of complements and countable unions (or equivalently of countable intesections – note ). Hence is a -field if whenever whenever Definition 2. … Continue reading

Posted in Probability | Tagged , , | Leave a comment