document.write( "Question 442720: What kinds of Web sites do males aged 18 to 34 visit most ofen? Was found about 50% of male Internet users in this age group visit an auction site such as eBay at leat once a month.Interview a random sample of 12 male Internet users aged 18-34.
\n" ); document.write( "Find the probability that at least 8 of the 12 have visited an auction site in the past month!
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Algebra.Com's Answer #305439 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "about 50% of male Internet users in this age group visit an auction site such
\n" ); document.write( " as eBay at leat once a month.
\n" ); document.write( "random sample of 12 male Internet users aged 18-34.
\n" ); document.write( "Find the probability that at least 8 of the 12 have visited an auction site in the past month!
\n" ); document.write( " P(at least 8 of 12) = P(8 ≤ x ≤ 12) = .1938\r
\n" ); document.write( "\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( "In this case p & q are = .5
\n" ); document.write( "nCx = \"n%21%2F%28x%21%28n-x%29%21%29\"
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