document.write( "Question 1195890: A bag contains 8 red marbles, 3 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the exact probability that all three marbles drawn will be green?\r
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Algebra.Com's Answer #828486 by ikleyn(52786) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "A bag contains 8 red marbles, 3 blue marbles and 5 green marbles.
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document.write( "At the start, there are  8 + 3 + 5 = 16  marbles in the bag.\r\n" );
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document.write( "Of them, 5 marbles are green.\r\n" );
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document.write( "The probability that the first drawn marble is green equals  .\r\n" );
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document.write( "After that, we have 15 marbles in the bag with 4 green marbles.\r\n" );
document.write( "So, the probability that the first two drawn marbles are green equals  .\r\n" );
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document.write( "Analyzing further in the same way, we find that the probability\r\n" );
document.write( "that the first three drawn marbles are green equals \r\n" );
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document.write( "     = reduce the fractions =  =  = .   ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Ignore the solution by @MathLover1, since it is totally wrong.\r
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\n" ); document.write( "\n" ); document.write( "It is a good/classic example on how this problem SHOULD NOT be solved.\r
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\n" ); document.write( "\n" ); document.write( "Avoid such errors in the future ( ! )\r
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\n" ); document.write( "\n" ); document.write( "                        After reading the post by Alan, I find it necessary to explain \r
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\n" ); document.write( "\n" ); document.write( "        When such problem goes without explicit pointing on \" with or without replacement \",\r
\n" ); document.write( "\n" ); document.write( "        then by DEFAULT and by the context, it ALWAYS means \" without replacement \".\r
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