To Compute a Mean for Scores That Have Been Grouped

question 28

Multiple Choice

To compute a mean for scores that have been grouped into a frequency distribution, we assume that the scores in each interval are________.

• A) spread evenly across the interval.
• B) twice the value of the next lower interval.
• C) located at the lower real limit of the interval.
• D) located at the midpoint of the interval.

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Definitions:

Trich-

A prefix meaning related to hair.

Prefix

A morpheme added to the beginning of a word to alter its meaning or create a new word.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the diameter and size of the pupil, thus the amount of light reaching the retina.

Pupil

The opening in the center of the iris of the eye that adjusts size to regulate the amount of light entering the eye.