Suppose the Scores Between 20 and 40 Have a Relatively

question 46

Short Answer

Suppose the scores between 20 and 40 have a relatively frequency of .30.What area under the normal curve do these scores constitute?

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Definitions:

Finely Crystalline

Describes a texture of rocks or minerals with very small crystals that are often too small to be seen unaided, indicating rapid cooling or chemical precipitation.

Glassy Texture

A description of igneous rocks that cooled quickly from molten material, resulting in a non-crystalline or vitreous appearance.

Pyroclastic Eruption

A volcanic eruption involving the explosive ejection of hot ash, lava fragments, and gases.

Pegmatite

An igneous rock containing very large crystals, which may be centimeters to meters long.