Update, Aug. 28, 2025: We checked all product prices and availability. We also added reviews of the Keurig K-Mini Mate and K-Brew+Chill, which we named "best single-serve coffee maker for iced coffee.

The mean is the mathematical average of two or more numbers. Find out how investors and economists use the mean to track performance.

Investing in private credit involves making a loan, while private equity investors acquire stakes in nonpublic companies. Learn more about these alternative investments.