document.write( "Question 1184001: Out of 20students in a statistics class 3students are failing in the course if4 students from the class are picked up at random what is the probability that one of the failing student will be among them \n" ); document.write( "
Algebra.Com's Answer #814525 by ikleyn(52778)\"\" \"About 
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\n" ); document.write( "Out of 20 students in a statistics class 3 students are failing in the course. If 4 students from the class
\n" ); document.write( "are picked up at random what is the probability that one of the failing student will be among them
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document.write( "    P = \"%28C%5B3%5D%5E1%2AC%5B20-3%5D%5E3%29%2FC%5B20%5D%5E4\" = \"%28C%5B3%5D%5E1%2AC%5B17%5D%5E3%29%2FC%5B20%5D%5E4\" = \"%283%2A680%29%2F4845%29\" = \"8%2F19\" = 0.4211.     ANSWER\r\n" );
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document.write( "The denominator is the number of different quadruples to choose from 20 students - the space of events.\r\n" );
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document.write( "The numerator is the number of those quadruples, that consist of one of 3 failed students and three of remaining 17 students.\r\n" );
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