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Count the Fs: Why a Sample instead of a Census?

This interactive lecture activity motivates the need for sampling. "Why sample, why not just take a census?" Under time pressure, students count the number of times the letter F appears in a paragraph. The activity demonstrates that a census, even when it is easy to take, may not give accurate information. Under the time pressure measurement errors are more frequently made in the census rather than in a small sample.
Resource Type
Format
Audience
Date Of Record Creation 2007-05-22 13:25:35
Date Of Record Release 2007-05-22 13:25:35
Date Last Modified 2007-05-22 13:25:35
Statistical Topic
Material Type
Author's Name Carolyn Cuff
Author's Organization Westminster College
Source Code Available No
Intended User Role
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Math Level
Date Record Checked: 2007-05-22 00:00:00

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