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Question: This is also Exercise. The CNN website sometimes has a small box called "Quick vote" that contains a question about an interesting topic in the news that day. For example, one question in February 2010 asked, "Should the U.S. military let gays and lesbians serve openly?" Visitors to the website are invited to click their response and to view the results. When the results are displayed, they contain the message, "This is not a scientific poll."

a. What type of sample is obtained in this "Quick vote?"

b. What do you think is meant by the message that "This is not a scientific poll?"

Exercise: The CNN website sometimes has a small box called "Quick vote" that contains a question about an interesting topic in the news that day. For example, one question in February 2010 asked "Should the U.S. military let gays and lesbians serve openly?" Visitors to the website are invited to click their response and to view the results. When the results are displayed they contain the message "This is not a scientific poll."

a. What type of sample is obtained in this Quick vote?

b. What do you think is meant by the message that "This is not a scientific poll?"

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