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A pollster would like to survey 500 students to determine the percentage that would vote for DONALD TRUMP.If the pollster surveyed 500 students who attend

A pollster would like to survey 500 students to determine the percentage that would vote for DONALD TRUMP.If the pollster surveyed 500 students who attend Trump rallies, will the results be meaningful to depict the thinking of the entire US population of students?

a, yes,of course.they know most about Trump

b. no,not a random,unbiased sample

c. yes,sample is unbiased

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