Mathematicians rely on numbers, but finding words to explain different levels of certainty has stymied everyone from the ...

In 1990, a reader asked Marilyn vos Savant a deceptively simple probability question in her newspaper column. Her answer — that you should switch doors in the Monty Hall problem — sparked outrage ...

Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced financial consultant. She has a demonstrated history of working in both institutional and retail environments, from broker-dealers to ...

Every item on this page was chosen by an ELLE editor. We may earn commission on some of the items you choose to buy. Sometimes, the most simple nail designs are the ones that stand out among the rest.

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

A confused parent turned to the internet to ask for help with their young child's homework after being left baffled by a take-home worksheet. The puzzled mother, believed to be from the US, took to ...

PV yield forecasts are widely considered to be inaccurate, partly because they underestimate uncertainty. Image: Tilt Renewables. The uncertainty in energy yield forecasts is frequently underestimated ...

Karen Goracke is the CEO of the jewelry store Borsheims, a Berkshire Hathaway subsidiary. Goracke worked her way up from the store room, and Warren Buffett interviewed her for the CEO job. She says ...

The mathematician Daniel Litt has driven social media users to distraction with a series of simple-seeming but counterintuitive probability puzzles. In late January, Daniel Litt posed an innocent ...

When markets are doing well, investors are likely to underestimate risk and chase investments that are too aggressive for their risk profile. Amid the excitement, risk capacity—the ability to take on ...

Multiple births — twins, triplets or even more — can be both a blessing and a curse. Mercifully, a steep decline from twins to nonuplets fits a simple probability progression. Births of nine (usually ...