Question 1142715
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From the basic definition of probability, the numerator is the number of ways of choosing 2 of the 8 freshmen AND 3 of the 10 sophomores AND 4 of the 6 juniors AND 5 of the 7 seniors.  The denominator is the number of ways of choosing 14 of the total 31 students:<br>
{{{P = (C(8,2)*C(10,3)*C(6,4)*C(7,5))/C(31,14)}}}<br>
Big ugly numbers; use a calculator.