A "Life Table" is a statistical tool that is used to measure the probability of survival and mortality in a given population. It is useful for studying the demographics of a particular group of individuals. There are a few synonyms that can be used to describe a life table, including "mortality table," "survival table," and "actuarial table." These terms are often used interchangeably, but they each have slight variations in their meanings. Regardless of the name used, life tables are an essential tool for demographers, statisticians, health professionals, and policymakers who need to understand the life expectancy and mortality rates of different populations.