document.write( "Question 516114: A bag contains 5 red marbles, 10 white marbles, and 6 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red? \r
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document.write( "The probability that all the marbles are red is:\r
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document.write( "What is the probability that exactly two of the marbles are red?
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document.write( "The probability that exactly two of the marbles are red is:\r
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document.write( "What is the probability that none of the marbles are red?
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document.write( "The probability of picking no red marbles is \n" );
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Algebra.Com's Answer #344269 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! ways to pick 5 out of 21 ___ 21C5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there is one way to select 5 out of 5 (red), so the probability of 5 red is ___ 1 / 21C5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "ways to pick 2 out of 5 (red) ___ 5C2 \n" ); document.write( "ways to pick 3 out of 16 (non-red) ___ 16C3 \n" ); document.write( "___ so the probability of 2 red is ___ [(5C2)(16C3)] / 21C5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "ways to pick no red ___ 16C5 \n" ); document.write( "___ probability of no red ___ 16C5 / 21C5 \n" ); document.write( " |