Jan 30 2021
Of Bubbles and Arrows
Maps of symbols connected by lines are the most common form of graphic communication about operations, next to bar charts, pie charts, and time series. The symbols may be a variety of pictograms and there may be different types of lines, including arrows, double-headed arrows with a variety of arrowheads, with dashed lines of varying thicknesses…
This is about what you can do with such maps beyond communicating, and the challenges of mapping systems that don’t fit on one slide. It is also about improving current practices.
Apr 2 2021
COVID-19 Pfizer Vaccine Study On Teens
Pfizer-BioNTech just announced the results of a COVID-19 vaccine clinical trial of 12- to 15-year olds. Because the vaccinated group had 0 infections, the news media jumped to the conclusion that the vaccine has “100% efficacy” on 12- to 15-year olds. That is what the chyron said on NBC news. A look at the published trial results and quick analysis with current methods confirms that the vaccine works for that population but not that it eliminates 100% of the infections.
By Michel Baudin • Data science • 0 • Tags: Bayesian Statitics, COVID-19, Efficacy, Quality