document.write( "Question 511265: A quiz cosists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 40 %. \n" ); document.write( "
Algebra.Com's Answer #342095 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A quiz cosists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 40 % \n" ); document.write( "---- \n" ); document.write( "Binomial Problem with n = 20 and p(correct) = 1/6 \n" ); document.write( "--- \n" ); document.write( "20% of 20 = 4 \n" ); document.write( "---- \n" ); document.write( "P(4 <= x <= 20) \n" ); document.write( "= 1 - P(0 <= x <= 3) \n" ); document.write( "= 1-0.5665 \n" ); document.write( "= 0.4335 \n" ); document.write( "============ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |