document.write( "Question 1051169: What is the formula to solve the following:
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document.write( "What is the probability of getting a tail and then two heads flipping a fair coin three times.
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Algebra.Com's Answer #666747 by Theo(13342)![]() ![]() You can put this solution on YOUR website! you flip the coin 3 times.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the probability of getting a tail on the first toss is 1/2..\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the probability of getting a head on the second toss is 1/2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the probability of getting a head on the third toss is 1/2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the probability of getting a tail on the first toss and a head on the second toss and a head on the third toss is 1/2 * 1/2 * 1/2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that would be equal to 1/8.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the possible combinations are:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "HHH \n" ); document.write( "HHT \n" ); document.write( "HTH \n" ); document.write( "HTT \n" ); document.write( "TTT \n" ); document.write( "TTH \n" ); document.write( "THT \n" ); document.write( "THH *****\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "H represents head. \n" ); document.write( "T represents tail.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there are 8 possible combinations. \n" ); document.write( "only 1 of them is THH.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "THH means tail on the first toss and heads on the second and third toss.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |