On January 2, 2008, the America idol website conducted an online poll that asked respondents which contestant they liked best among six former contestants. To become part of the sample, respondents simply clicked on a resume. Of the 941,435 responses to this poll, 55% voted for clay Aiken. We can conclude that _____.  (a) most Americans prefer clay Aiken out of those former contestants.  (b) the sample is too small a fraction of the millions of people who watched the tv show to draw any conclusion.  (c) the poll uses voluntary response, so the results tells us little about the population of all adults.

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