1 Polyps: Benign growths in the uterine lining (endometrium) can cause a heavy or prolonged period. 2  Ovary dysfunction: Lack of ovulation (anovulation) results in a lack of progesterone, causing heavy periods. 3  Adenomyosis: When glands from the uterine lining embed in uterine muscle, heavy bleeding can occur.
Mean and Variance of Random Variables. The mean of a random variable provides the long-run average of the variable, or the expected average outcome over many observations.
Part of the Programming glossary: In programming, a variable is a value that can change, depending on conditions or on information passed to the program.Typically, a program consists of instruction s that tell the computer what to do and data that the program uses when it is running.art of the Programming glossary: In programming, a variable is a value that can change, depending on conditions or on information passed to the program.