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Which Group Makes Up About 25% of the World's Population

question 13

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Which group makes up about 25% of the world's population?


Definitions:

Independent Variable

In scientific research, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Correlation Coefficient

A numerical index of the degree of relationship that exists between two variables.

Strength

The quality or state of being physically strong, as well as a person's mental or emotional ability to deal with difficult situations.

Direction

Guidance or instructions on how to proceed; or, the course along which something moves.

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