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.
A continuous variable is a variable that can take on any value on the scale. used to measure it. Thus, a measure of 1 or 2 is valid, as well as 1.5 or 1.25. Any. division on any unit on the scale produces a valid possible measure. Examples include. things like height or weight.