Mathematics, 25.02.2020 03:01 hannahg9525
8 professors and 11 students are available to serve on committee. (a) How many ways can a committee of four people be selected? (b) How many committees can be formed if each committee must have 3 professors and 4 students?
Answers: 3
![=\dfrac{19!}{4!(19-4)!}\ \ \ [\because\ ^nC_r=\dfrac{n!}{r!(n-r)!}]\\=\dfrac{19\times18\times17\times16\times15!}{24\times15!}\\=3876](/tpl/images/0522/6040/b9582.png)
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8 professors and 11 students are available to serve on committee. (a) How many ways can a committee...
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