Answer:
a) 332640 ways
b) 462 ways
Step-by-step explanation:
Order:
If the order of the choices matters, we use the permutations formula. If they do not matter, we use the combinations formula.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
6 objects, from a set of 11.
a) Order matters, so permutation.
b) Order does not matter, so combinations.