The British Airways Internet Site Provides a Questionnaire Instrument That

question 69

Multiple Choice

The British Airways Internet site provides a questionnaire instrument that can be answered electronically. Which of the four methods of data collection is involved when people complete the questionnaire?

• A) published sources
• B) experimentation
• C) surveying
• D) observation

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Definitions:

Standard Deviation

A statistical measurement that shows how much variation or dispersion exists from the average (mean) value.

Frequency Polygon

A graphical representation of the distribution of numerical data. It is usually a line that connects points representing the frequencies of various categories or intervals of data.

Class Intervals

Ranges of values into which data points are grouped for frequency distribution analysis.

Histogram

A type of bar chart used in statistics to represent the distribution of data by showing the number of data points that fall within a range of values.