A Professor Wants to Arrange His Books on a Shelf

question 107

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

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Definitions:

Tertiary Prevention

Measures aimed at rehabilitation and preventing further health deterioration in patients diagnosed with disease or injury.

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A form of treatment for mental health conditions that involves talking to a therapist.

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