Anxiety can often make these related conditions worse, so talk with a mental health care professional if anxiety begins to interfere on a daily basis.
In probability theory and statistics, the variance of a random variable is a measure of its statistical dispersion, indicating how far from the expected value its values typically are. The variance of a real-valued random variable is its second central moment, and it also happens to be its second cumulant.
Wiktionary (0.00 / 0 votes) Rate this definition: variance (Noun). The act of varying or the state of being variable. variance (Noun). A difference between what is expected and what happens. variance (Noun). The state of differing or being in conflict. variance (Noun). A discrepancy, especially between two legal documents.