Julie Rehmeyer
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All Stories by Julie Rehmeyer

Humans
Statistical tests suggestive of fraud in Iran’s election
One mathematician’s closer look at voter ballot data reveals that results run afoul of Benford’s Law and show other suspicious anomalies.

Math
The four color problem gets a sharp new hue
Mathematicians find new answers to the still puzzling theorem that four colors suffice to color any map.

Math
Mathematician answers Supreme Court plea
New, fair method for dividing states into congressional districts could reduce political squabbles.

Life
Darwin: The reluctant mathematician
Despite disliking mathematics, the great biologist inadvertently advanced statistics.

Math
The happiness virus
Two studies apply social networking ideas to data from health studies of thousands of people, and suggest different interpretations of how contagious happiness or other experiences can be.

Math
Traveler’s Dilemma: When it’s smart to be dumb
Some game theory paradoxes can be resolved by assuming that people adopt multiple personae, and aren’t rational.

Math
Florence Nightingale: The passionate statistician
Florence Nightingale pioneered the use of applied statistics to develop policy and developed novel ways of displaying them.

Math
How to (really) trust a mathematical proof
Mathematicians develop computer proofchecking systems in order to realize longsought dreams of fully precise, accurate mathematics.

Math
Shuffling the cards: Math does the trick
Here’s the rule: To assure cards get sufficiently mixed up, shuffle a deck about seven times. Mathematician, magician and card shark Persi Diaconis of Stanford University, along with David Bayer of Columbia University, created shock waves in Las Vegas when he figured that out back in 1992. Most dealers had been shuffling much less. PRISONERS’ […]

Math
Unknotting knot theory
New techniques are beginning to unravel the mysteries of knots, revealing a great mathematical superstructure in the process.