document.write( "Question 431995: can anyone help me with this please? Im new to statistics\r
\n" ); document.write( "\n" ); document.write( "Among the group of 20 students who registered for the statistic course, 8 of them are first-year students. 5 students are randomly selected from the group. What is the probability that exactly 2 of the selected students are first-year students?
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Algebra.Com's Answer #299662 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "8 1st year students among a group of 20 students registered for the statistic course. 
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document.write( "5 are randomly selected from the group. 
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document.write( "20C5 = 15,504    |nCx = 
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document.write( "represents the total ways of selecting a group of 5 among the 20\r
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document.write( " P(exactly 2 of the selected students are among the 8 1st-year students)
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document.write( "  P = 8C2*12C3/20C5 = 28*220/15,504 = 6160/15,504 = .3973\r
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