document.write( "Question 747460: a person can solve 80% of paper and another can solve 60% paper.what is the probability that atleast one of them will solve the problem form the questions paper at random \n" ); document.write( "
Algebra.Com's Answer #454930 by mikeebsc(26) ![]() You can put this solution on YOUR website! Person a = .80 \n" ); document.write( "Person b = .60\r \n" ); document.write( "\n" ); document.write( "We use the addition rule for the probability of A or B which says: \n" ); document.write( "The probability that 2 events A or B will occur P(a or b) is given by the equation: \n" ); document.write( "P(a or b) = P(a) + P(b) - P(a*b)\r \n" ); document.write( "\n" ); document.write( "P(a or b) = P(.80) + P(.60) - P(.80*.60) \n" ); document.write( "P(a or b) = 1.4-.48 \n" ); document.write( "P(a or b) = .92\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |