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Sampling seventy-two percent of americans squeeze their toothpaste tube from the top. This and other not so serious finding are included in The first...

Sampling seventy-two percent of americans squeeze their toothpaste tube from the top. This and other not so serious finding are included in The first really important survey of american habits. Those results are based on 7000 responses from the 25000 questionnaires that were mailed. What is wrong with this survey?

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