Answer
$165$
Work Step by Step
Binomial coefficient can be found as: $\dbinom{n}{k}=\dfrac{n!}{r!(n-r)!}$
Thus, $\dbinom{11}{8}=\dfrac{11!}{8!(11-8)!}$
or, $=\dfrac{11 \cdot 10 \cdot 9 \cdot 8!}{8!(3)!}$
or, $=\dfrac{11 \cdot 10 \cdot 9}{3 \cdot 2 \cdot 1}$
or, $=165$