document.write( "Question 1203659: A pair of fair dice is rolled. What is the probability that the number landing uppermost on the first die is 4 if it is known that the sum of the numbers landing uppermost is 7?
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Algebra.Com's Answer #839399 by ikleyn(52817) $\"\"$ $\"About$

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document.write( "If the sum of outcomes is 7, then the number of such outcomes is 6\r\n" );
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document.write( "(these outcomes are (1,6), 2,5), (3,4), (4,3), (5,2), (6,1)).\r\n" );
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document.write( "Of them, only one outcome is favorable: ((4,3).\r\n" );
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document.write( "It gives the probability  P = .    ANSWER\r\n" );
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