Evolutionary Biologists, Teamed Up with Anthropologists and Medical Researchers, Have

question 51

Multiple Choice

Evolutionary biologists, teamed up with anthropologists and medical researchers, have identified over ________ species of plants that have been used by humans as medicines.

• A) 20
• B) 1,000
• C) 5,000
• D) 20,000
• E) 250,000

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Definitions:

Probability

A numeric scale from 0 to 1 indicating how probable an event is to take place.

Statistic

A numerical value that describes a characteristic of a sample.

Regions of Rejection

Areas in a statistical test that, if a test statistic falls within, lead to the rejection of the null hypothesis.

Critical Value

The threshold value that the test statistic must exceed in order for the null hypothesis to be rejected.