Trading desk committee

Order does not matter, so count combinations.

1. Since order does not matter, the count is the binomial coefficient $\left(\genfrac{}{}{0ex}{}{8}{3}\right)$.
2. The numerator is $8\times 7\times 6=336$.
3. The denominator is $3\times 2\times 1=6$.
4. Therefore the number of committees is $56$.

Answer: $56$