Prediction markets such as Polymarket and Kalshi let users win money by correctly guessing the outcome of practically any event.

George Pólya’s random walk theorem absolved him of being a lurker and revealed how the laws of chance interact with physical ...

University of Missouri researchers have released the world's largest collection of protein models with quality assessment—a groundbreaking new resource that could accelerate drug development for ...

Niro Feliciano is a mom, author and therapist with a master of science in social work. She’s a TODAY show contributor and author of the TODAY.com column “Is This Normal?” Over the years, I have gotten ...

The currents of the oceans, the roiling surface of the sun, and the clouds of smoke billowing off a forest fire—all are ...

As prediction markets boom, competition is heating up. So traders go the extra mile for a fraction-of-a-second advantage or ...

Pew Research Center is a nonpartisan, nonadvocacy fact tank that informs the public about the issues, attitudes and trends shaping the world.

Bayes' theorem is a statistical formula used to calculate conditional probability. Learn how it works, how to calculate it ...

Polymarket welcomes insider trading. Kalshi says it's banned — but it's unclear how that works in practice.

Mosaic theory is an analysis method used in finance to gather diverse information about companies. Discover its components and how it can guide investment decisions.