The mode is a statistical term for the value that occurs most frequently in a set of numbers. Learn about the difference between the mean, median, and mode.

Learn about social security benefits, including retirement, disability, survivor benefits. Understand when to start collecting benefits and what you'll receive.

Depending on your 401(k) plan, employers may match contributions in a number of ways. According to Vanguard, the average employer match is 4.6%. The median (middle-of-the-road) match is 4.0%.

The median income for Americans 65 and older is $54,710. The mean (average) is $83,950 Average annual expenditures for Americans 65 and older are $60,087. The average Social Security retirement ...