Jason wants to dine at three different restaurants during a summer getaway. If two of nine available restaurants serve seafood, find the number of ways that at least one of the selected restaurants will serve seafood given the following conditions. (a) The order of selection is important. (b) The order of selection is not important..
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
Jason wants to dine at three different restaurants during a summer getaway. If two of nine available restaurants serve seafood, find the number of ways that at least one of the selected restaurants will serve seafood given the following conditions. (a) The order of selection is important. (b) The order of selection is not important..
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