True or False If a task consists of a sequence of threechoices in which there are p selections for the first choice,q selections for the second choice, and r selections for thethird choice, then the task of making these selections can bedone in p . q . r different ways.
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.
True or False If a task consists of a sequence of three
choices in which there are p selections for the first choice,
q selections for the second choice, and r selections for the
third choice, then the task of making these selections can be
done in p . q . r different ways.
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