Evaluate the following permutations. Check your results using the prb button on your calculator. Permutations on Calculator There are 88 children that are taking turns using the swing on a playground. How many different ways are there in which they each can use the swing where everyone gets exactly one turn? Dustin has 1313 books on his summer reading list. He wants to choose 44 books to read in order from first to last. In how many ways can he do this? The student council has 1111 students. They need to choose a President, Vice President, Secretary and Treasurer for student council. In how many ways can the 44 different positions be appointed from the 1111 students? Alfonso is creating a 55 digit passcode using the digits 00 through 99. How many 55 digit passcodes are possible if the numbers cannot be repeated?
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.
Evaluate the following permutations. Check your results using the prb button on your calculator. Permutations on Calculator |
There are 88 children that are taking turns using the swing on a playground. How many different ways are there in which they each can use the swing where everyone gets exactly one turn? |
Dustin has 1313 books on his summer reading list. He wants to choose 44 books to read in order from first to last. In how many ways can he do this? |
The student council has 1111 students. They need to choose a President, Vice President, Secretary and Treasurer for student council. In how many ways can the 44 different positions be appointed from the 1111 students? |
Alfonso is creating a 55 digit passcode using the digits 00 through 99. How many 55 digit passcodes are possible if the numbers cannot be repeated? |
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