Population variance is a type of the measure of spread that is often come into consideration in statistics whenever the population data is used. It is referred to the estimation how far the values of a population spread or disperse around the mean position.
Definition of scowl. intransitive verb. 1 : to contract the brow in an expression of displeasure. 2 : to exhibit a threatening aspect. transitive verb.
Full Definition of FRONTAL. 1. : of, relating to, or adjacent to the forehead or the frontal bone. 2. a: of, relating to, or situated at the front. 3. : parallel to the main axis of the body and at right angles to the sagittal plane. 4. : of or relating to a meteorological front.