Classify as permutation or combination and explain why.
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1. The arrangement of the letters in the word PANDEMIC.
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2. The number of the 3-letter subsets in the word ALGEBRA.
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3. How many 5-digit postal zip codes are there if no digit is repeated?
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4. A four-person committee is to be elected from an organization’s membership of 11 people.
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5. 4 songs will be played during an assembly but 8 songs were submitted. How many ways can the DJ choose 4 songs to play?
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Answer:
1. permutation
2. combination
3. permutation
4. combination
5. combination
Step-by-step explanation:
correct me if I'm wrong:)