What is a functional region?

It's an area that is organized around a focal/nodal point where there is a central focus. The central diminishes as you move outwards from the point. Generally used to display information about economic activities.

A relational hypothesis is one that suggests variables are related in some way. A causal hypothesis is one that suggests that a cause-and-effect relationship exists between variables. An example of a relational hypothesis is that a significant relationship exists between smoking and obesity.

Explanation:

Types of Hypothesis

Simple hypothesis.Complex hypothesis.Directional hypothesis.Non-directional hypothesis.Null hypothesis.Associative and casual hypothesis.