The Caspian Sea

question 7

Multiple Choice

The Caspian Sea

• A) drains into the Mediterranean.
• B) has doubled in size over the last few hundred years.
• C) is threatened by oil-industry pollution.
• D) is in much greater danger than is the Aral Sea is for desiccation due to excess water use.
• E) is the smallest lake in Central Asia.

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Definitions:

Score

A numerical or categorical representation of a performance, achievement, or the outcome of an assessment.

Mean

The arithmetic average of a set of values, calculated by dividing the sum of the values by the number of values.

Variance

The average of the squared differences from the Mean, providing a measure of how spread out numbers are in a dataset.

Data

Factual information, especially numerical or categorical, used as a basis for reasoning, discussion, or calculation.