document.write( "Question 1203254: A number is picked at random from the digits 1, 2, ..., 9. Given that the number is a multiple of 3, find the probability that the number is
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Algebra.Com's Answer #838678 by ikleyn(52802) $\"\"$ $\"About$

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\n" ); document.write( "A number is picked at random from the digits 1, 2, ..., 9.
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document.write( "(a)  The space of events consists of 9 elements (all with the uniform probability of 1/9}.\r\n" );
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document.write( "     The reduced set, where you are looking for, consists of 3 elements {3, 6, 9 }.\r\n" );
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document.write( "     The set of favorable elements is {6}, consisting of 1 element.\r\n" );
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document.write( "     The probability is the ratio P = .    ANSWER\r\n" );
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document.write( "(b)  In this case, the space of favorable elements is EMPTY.\r\n" );
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document.write( "     Therefore, the probability is 0 (zero).    ANSWER\r\n" );
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