A 8 person committee consist of 5 women, including Margaret, and 3 men, including Anthony. If a subcommittee of 3 people is to be chosen at random to evaluate a new project. The subcommittee needs to include at least 1 women, but can’t consist entirely of women. (a) How many ways are there to select a subcommittee which consist of 1 man and 2 women? (b) How many ways are there to select a subcommittee which consist of 2 man and 1 women? (c) How many subcommittees satisfying the conditions can be selected
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.
A 8 person committee consist of 5 women, including Margaret, and 3 men, including Anthony. If a subcommittee of 3 people is to be chosen at random to evaluate a new project. The subcommittee needs to include at least 1 women, but can’t consist entirely of women.
(a) How many ways are there to select a subcommittee which consist of 1 man and 2 women?
(b) How many ways are there to select a subcommittee which consist of 2 man and 1 women?
(c) How many subcommittees satisfying the conditions can be selected?
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