document.write( "Question 1200546: The probabilities are 0.90, 0.80 that a family randomly chosen as part of a sample survey in a large city owns a flat screen television or a computer. what is the probability that a family in this area own one or the other? \n" ); document.write( "
Algebra.Com's Answer #834710 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The wording of the problem could be improved. \"... own one or the other\" could mean ONLY one of the two; or it could mean one or the other or both. \n" ); document.write( "I will assume the meaning is the latter. \n" ); document.write( "The opposite (complement) of \"owning one or the other\" is NOT owning either one -- that is, NOT owning a flat screen TV AND NOT owning a computer. The probability of that happening is (1-0.90)(1-0.80) = (0.10)(0.20) = 0.02; so the probability that they own one or the other is 1-0.02 = 0.98. \n" ); document.write( "ANSWER: 0.98 \n" ); document.write( " \n" ); document.write( " |