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

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Katherine Haan, MBA, is a Senior Staff Writer for Forbes Advisor and a former financial advisor turned international bestselling author and business coach. For more than a decade, she’s helped small ...

Decision-making inherently involves cause–effect relationships that introduce causal challenges. We argue that reliable algorithms for decision-making need to build upon causal reasoning. Addressing ...

Donald Trump just wrapped up the first year of his second term as president. Business Insider examined how the economy has changed in that year. The job market slowed down a lot, consumers kept ...

When Motorola introduced its first mobile phone in 1984, the company hoped for a buying frenzy. But even the best marketers couldn’t have predicted the success of mobile phones. Today, mobile phones ...

As a staff writer for Forbes Advisor, SMB, Kristy helps small business owners find the tools they need to keep their businesses running. She uses the experience of managing her own writing and editing ...

If a child has health insurance through both parents, the birthday rule determines which parent's coverage pays first and which pays second. The birthday rule for health insurance says coverage of the ...

There are more licensed female drivers in the U.S. than male drivers. But men nonetheless drive far more than women each year. A disproportionate share of fatal traffic accidents involves male drivers ...

International Ice Hockey Federation (IIHF) rules at the Olympics differ from the NHL in a few ways: Roster sizes are smaller in Olympic competition than in the NHL Fighting is not permitted in Olympic ...

2025 Roth IRA contribution limit is $7,000, increasing to $7,500 in 2026. Withdrawals from a Roth IRA are tax-free if a person is over 59 1/2 and meets the five-year rule. Roth IRA rollovers must be ...