If All Visitors to the CNN Web Site Are Invited

question 47

Multiple Choice

If all visitors to the CNN Web site are invited to take part in the daily poll online,is the resulting sample likely to be biased?

• A) No,this will result in a simple random sample.
• B) No,although this sample would not be random,it would definitely be representative of the population.
• C) Yes,the sample is likely to suffer from non-response and self-selection bias.
• D) More information is needed to answer the question.

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Definitions:

Constitutional Convention

A gathering for the purpose of writing new or revising existing constitutions; notably, the convention in 1787 resulted in the drafting of the current United States Constitution.

New York City

The largest city in the United States, known for its significant influence on commerce, finance, media, art, fashion, research, technology, education, and entertainment.

Philadelphia

A historic city in the United States, known for its significant role in America's founding, including being the site of the signing of the Declaration of Independence and the Constitution.

Washington, D.C.

The capital city of the United States, serving as the seat of its federal government and various international institutions.