The mathematics of golf

Golf clubs. Credit: NASA (Phys.org)—The official Rules of Golf, which are continually being revised and updated as new equipment emerges, have close ties to mathematics. In many cases, math is used to place limitations on golf equipment, such as restricting the distance the ball will travel, as predicted by mathematical models. The Rules also place…

This math puzzle will help you plan your next party

Mapping connections at your next shindig. Credit: unclibraries_commons Let’s say you’re planning your next party and agonizing over the guest list. To whom should you send invitations? What combination of friends and strangers is the right mix? It turns out mathematicians have been working on a version of this problem for nearly a century. Depending…

Taking it to the Tweets—statistics proves Twitter a powerful tool in forecasting crime

Although most people don’t broadcast in advance their intention to engage in criminal activity, University of Virginia Assistant Professor of Systems and Engineering Information Matthew Gerber has discovered that the use of Twitter can help predict crime. Gerber’s research and work developing statistical crime prediction methods will be presented on Tuesday, August 1, 2017, at…

Redefine statistical significance: Large group of scientists, statisticians argue for changing p-value from .05 to .005

Relationship between the P-value threshold, power, and the false positive rate. Credit: PsyArXiv, 22 July 2017. (Phys.org)—A large group of scientists and statisticians has uploaded a paper to the PsyArXiv preprint server arguing for changing the p-value from .05 to .005. The paper outlines their reasons for suggesting that the commonly used value for assigning…

HBO programming stolen in cyberattack

HBO has had some of its programming stolen in what is being described as a cyber incident. The company says that it is working with law enforcement and cybersecurity firms. HBO CEO Richard Pepler says in an email to the network’s employees that “proprietary information” was stolen in the hack. Spokesman Jeff Cusson would…