What Does It Mean If the Standard Deviation of a Distribution

question 34

Multiple Choice

What does it mean if the standard deviation of a distribution of quiz grades is 0?

• A) An equal number of people received each grade (A, B, C, D, and E).
• B) The distribution is a normal, bell-shaped curve.
• C) Everyone in the class received the same grade or score.
• D) Everyone in the class received a different grade.

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Definitions:

Endangered

A status indicating that a species is at risk of extinction across all or a significant portion of its range due to various threats such as habitat loss, pollution, or predation.

Endangered Species

Species at risk of extinction due to a rapid decrease in population or loss of habitat, often caused by human activities.

Threatened Species

Plants, animals, or microbes at risk of becoming endangered within the foreseeable future throughout all or a significant portion of their habitat.

Imported Species

Species that are introduced into new environments by human activities, intentionally or accidentally.