Denials of allegations defendant wishes to contest (failure to deny is implied admission) AND Any affirmative defenses (SOL, lack of jurisdiction, comparative negligence, etc) AND counterclaims (defendant asserts own cause of action against the plaintiff) AND
Life expectancy is a statistical measure defined as the expected (mean) survival of human beings based upon a number of criteria such as gender and geographic location. Popularly, it is most often construed to mean the life expectancy at birth for a given human population, which is the same as the expected age at death.
Mathematically, life expectancy is the mean number of years of life remaining at a given age, assuming age-specific mortality rates remain at their most recently measured levels. It is denoted by , which means the mean number of subsequent years of life for someone now aged , according to a particular mortality experience.