4.Management selection. A corporation plans to fill 2 different positions for vice-president, V1and V2, from administrative officers in 2 of its manufacturing plants. Plant A has 7 officers and plant B has 5. a. How many ways can these 2 positions be filled if the V1 position is to be filled from plant A and the V2 position from plant B? b. How many ways can the 2 positions be filled if the selection is made without regard to plant?
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.
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