document.write( "Question 816316: A multiple-choice quiz of nine questions is given. Each question has five possible answers. If a student guesses at all the answers, find the probability that six out of nine are correct. (See Example 3. Round your answer to four decimal places.) \n" ); document.write( "
Algebra.Com's Answer #491502 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A multiple-choice quiz of nine questions is given. Each question has five possible answers. If a student guesses at all the answers, find the probability that six out of nine are correct. \n" ); document.write( "-------- \n" ); document.write( "Binomial Problem with n = 9 and p(correct) = 1/5 \n" ); document.write( "----- \n" ); document.write( "P(x = 6) = 9C6*(1/5)^6*(5/6)^3 = binompdf(9,1/5,6) = 0.0028 \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |