Imagine You Are Holding a Rock Composed of Small Sand

question 30

Multiple Choice

Imagine you are holding a rock composed of small sand grains cemented together.What subclassification of sedimentary rock is this?

• A) metamorphic
• B) sedimentary
• C) crystalline
• D) igneous

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Definitions:

Standard Deviation

A procedure for quantifying the degree of variance or distribution of values.

Unknown Mean

Refers to a situation in statistics where the average value of a dataset is not known and needs to be estimated.

Normal Random Variable

A variable that assumes any of the infinitely many values in a normal distribution curve.

Lifespan

The duration of time an organism, object, or process exists or functions until it ceases to do so.