Swelling of the ankle and feet is relatively frequent symptom in most people. In itself it does not represent a disease but rather the symptom of an underlying disease. 1  Causes of swollen ankles and feet are numerous including:  Dependent swelling (edema)
Report Abuse. POPULATION PARAMETER(p) is a value used to represent a certain QUANTIFIABLE characteristic of a population. This is like the mean or variance of a population and often these values are unknown, and are estimated using sample data.
One very important mechanism for regulating population size is density dependence. The density of a population is simply how many organisms are living in a given area. Density-dependent factors are factors where the effects on the size or growth of a population vary with the density of the population itself.