If the Distribution of Test Scores for a Midterm Is

question 59

Multiple Choice

If the distribution of test scores for a midterm is normal,approximately what percentage of the class should have a score that falls within two standard deviations of the mean

• A) 34 percent 
• B) 68 percent 
• C) 95 percent 
• D) 99 percent

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Definitions:

Biological Species Concept

A definition of species that refers to groups of interbreeding natural populations that are reproductively isolated from other such groups.

Reinforcement

In psychology, a stimulus that strengthens or increases the probability of a specific response.

Hybrid Zone

A geographical area where two closely related species meet, mate, and produce hybrid offspring.

Parental Species

The original species from which new species originate, often investigated in the context of evolutionary biology.