One ball on a Plinko board is unpredictable. Drop a thousand and they form a near-perfect bell curve—one of math’s most powerful ideas for 150+ years.

Bayes' theorem is a statistical formula used to calculate conditional probability. Learn how it works, how to calculate it step by step, and see real-world examples.

For over two decades, Google has been the search engine that most people use for everyday searches, product research, and staying up to date on the latest news. Because of this market dominance, ...