About ______ of Z-Scores in the Standard Normal Distribution Are

question 5

Multiple Choice

About ______ of z-scores in the standard normal distribution are within ______ standard deviations of the mean.

• A) 99%; ±1
• B) half; ±2
• C) two-thirds; ±3
• D) 95%; ±2

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Definitions:

Sodium Sulfate

An inorganic salt used in detergents, paper manufacturing, and glass production, known chemically as Na2SO4.

Atoms

Atoms are the basic units of matter and the defining structure of elements, consisting of a nucleus surrounded by electrons, and classified by the number of protons they contain.

Washing Detergent

A chemical substance used to break up and remove dirt and grease from fabrics, commonly in the form of powder or liquid.

Calcium Nitrate

An inorganic compound used as a nitrogen fertilizer in agriculture and also in waste water pre-conditioning for odor emission prevention.