One of the Major Threats to More Than 90% of Endangered

question 111

Multiple Choice

One of the major threats to more than 90% of endangered species is

• A) habitat loss.
• B) air pollution.
• C) water pollution.
• D) radioactivity.
• E) ozone depletion.

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Definitions:

Regression Model

A statistical approach for estimating the relationships among variables.

Independent Variables

Variables in an experiment or model that are manipulated to observe their effect on dependent variables.

Degrees Of Freedom

The quantity of independent values or measures that can be allocated to a statistical distribution.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it is the threshold at which the level of significance is set.