Answer
$330$ committees
Work Step by Step
A combination from a group of items occurs when no item is used more than once and the order of items makes no difference.
The number of combinations possible if $r$ items are taken from $n$ items is
${}_{n}C_{r}=\displaystyle \frac{n!}{(n-r)!r!}$
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There is no substantial difference in being the first or fourth member of a committee.
Order is not important, we deal with combinations.
${}_{11}C_{4}=\displaystyle \frac{11!}{(11-4)!4!}=\frac{11\times 10\times 9\times 8}{1\times 2\times 3\times 4}$
$=11\times 5\times 3\times 2=330$
