Organizing and Summarizing Data If the Standard Deviation of a Distribution

question 8

Multiple Choice

Organizing and Summarizing Data If the standard deviation of a distribution of test scores is 3 points, this means that

• A)the average score was 3.
• B)the average deviation score was 3.
• C)three scores were above the mean and three scores were below the mean.
• D)we can expect subjects in the group to deviate from the group mean by an average of 3 points.

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Definitions:

Comets

Celestial bodies orbiting the sun, typically characterized by a nucleus of ice and dust and, when near the sun, a visible coma or tail.

Orbit

The curved path of a celestial object or spacecraft around a star, planet, or moon, under the influence of gravitational forces.

Pronoun

A word used to replace a noun or noun phrase, often to avoid repetition.

Committee

A group of people appointed or elected to perform a specified service or function.