Multiple Choice
A professor wants to arrange his books on a shelf. He has 30 books and only space on the shelf for 20 of them.How many different 20-book arrangements can he make using the 30 books? This is an example of a problemthat can be solved using which method?
A) Permutations
B) Combinations
C) Conditional probability
D) Randomness
Correct Answer:

Verified
Correct Answer:
Verified
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