A Pegmatite Is a Coarse-Grained Igneous Rock That Forms Primarily

question 45

Multiple Choice

A pegmatite is a coarse-grained igneous rock that forms primarily because the melt

• A) is water-rich.
• B) cools very slowly.
• C) cools at great depth.
• D) cools under specific pressure conditions.

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Definitions:

Standard Normal Distribution

A probability distribution that has a mean of zero and a standard deviation of one, used in statistical analysis to represent standardized values of a dataset.

Confidence Interval

A span of numerical values, calculated from sample data, speculated to potentially contain the value of an unknown population parameter.

Population Proportion

The portion of a population that possesses a certain property or characteristic.

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A state of feeling abnormally sleepy or tired, often a symptom of a condition or result from certain medications, substances, or health issues.