National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. The application of statistical methods extracts information from ...

This widely used method of calculating returns considers a portfolio's cash flows Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles ...

The UAB Department of Medicine is an integral part of one of the nation's largest health systems. Nationally known for our compassionate care, cutting-edge research, and comprehensive training ...

Editor’s note: Previous versions of the simulation were incorrectly calculating each team’s odds of reaching the conference finals and beyond. That error has been ...

As schoolchildren we are taught that the scientific method involves a question and suggested explanation (hypothesis) based on observation, followed by the careful design and execution of controlled ...