document.write( "Question 471546: A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 20 students – 11 of them supported the change, 6 of them did not, and 3 had no opinion. This is not a binomial model because \n" ); document.write( "
Algebra.Com's Answer #323409 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Note: The probability of x successes in n trials is:
\n" ); document.write( "P = nCx* \"p%5Ex%2Aq%5E%28n-x%29\" where p and q are the probabilities of success and failure respectively.
\n" ); document.write( "nCx = \"n%21%2F%28x%21%28n-x%29%21%29\"
\n" ); document.write( "Above appropriate for use with a binomial model:\r
\n" ); document.write( "\n" ); document.write( "In this case p & q cannot be determined because some of the students surveyed
\n" ); document.write( "had no opinion and could not be counted in the numbers determining p or q
\n" ); document.write( "and therefore this is not a binomial model \n" ); document.write( "
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