document.write( "Question 262131: in a multiple choice test the probability of getting the correct answer by guessing alone is 20%. what are the odds against getting the correct answer by pure guessing? \n" ); document.write( "
Algebra.Com's Answer #193273 by stanbon(75887) ![]() You can put this solution on YOUR website! in a multiple choice test the probability of getting the correct answer by guessing alone is 20%. what are the odds against getting the correct answer by pure guessing? \n" ); document.write( "------------- \n" ); document.write( "Formula: Odds against = P(against)/P(for) \n" ); document.write( "Your Problem: \n" ); document.write( "P(correct) = 0.2 \n" ); document.write( "P(incorrect) = 0.8 \n" ); document.write( "------- \n" ); document.write( "Odds against = 0.8/0.2 = 4:1 \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |