A starting lineup in basketball consists of two guards, two forwards, and a center. a. A certain college team has on its roster three centers, four guards, four forwards, and one individual (X) who can play either guard or How many different starting lineups can be created? [ Hint. Consider lineups without X, then lineups with X as guard, then lineups with X as forward.] b. Now suppose the roster has 5guards, 5 forwards, 3 centers, and 2 "swing players"(X and Y) who can play either guard or forward. If 5 of the 15 players are randomly selected, what is the probability that they constitute a legitimate starting lineup?
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 starting lineup in basketball consists of two guards, two forwards, and a center.
a. A certain college team has on its roster three centers, four guards, four forwards, and one individual (X) who can play either guard or How many different starting lineups can be created? [ Hint. Consider lineups without X, then lineups with X as guard, then lineups with X as forward.]
b. Now suppose the roster has 5guards, 5 forwards, 3 centers, and 2 "swing players"(X and Y) who can play either guard or forward. If 5 of the 15 players are randomly selected, what is the probability that they constitute a legitimate starting lineup?
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