document.write( "Question 725526: Renee declared that 20 percent of all students in elementary school spend 2 hours or more on homework after she interviewed all the students in her class. Why is her conclusion unjustified? \n" ); document.write( "
Algebra.Com's Answer #444187 by rajagopalan(174)\"\" \"About 
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As Renee talked to the students of her class only which may not be a true sample of the school population.
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