The Variance Is

question 108

Multiple Choice

The variance is:

• A) a mean of absolute deviations
• B) a mean of positive and negative deviations
• C) a mean of squared deviations
• D) a mean of positive deviations
• E) no mean at all

---

Definitions:

Radial Cleavage

The pattern of blastomere production in which the cells are located directly above or below one another; characteristic of early deuterostome embryos. Compare with spiral cleavage.

Abdominal Cavity

A body cavity in vertebrates that houses many organs, enclosed by the abdominal muscles and containing the stomach, intestines, liver, and other organs.

Coelom

A fluid-filled body cavity between the intestinal canal and the body wall in most bilateral animals, housing organs.

Pseudocoelom

A body cavity between the mesoderm and endoderm; derived from the blastocoel. Compare with coelom.