Learn how to calculate hazard rate, its practical implications in engineering and finance, and why it's critical in predicting survival and failure rates.

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.

When it comes to deciding how significant a statistic is, Université de Montréal education professor Sébastien Béland is ...