In how many ways can different books be arranged on a shelf?
Answer and explanation
Correct answer: D.
- Step 1: There are choices for the first place, for the second, and so on. Step 2. . **Answer: . Why not the others:** ignores that a book cannot be used twice.
Practise more Probability and Statistics.
Free questions with an explanation for every one, and full timed German Abitur mock tests.
More Probability and Statistics questions
- A fair die is rolled once. What is the probability of an even number?
- If , what is , the probability of the opposite event?
- A fair die is rolled twice. What is the probability of at least one six?
- A fair coin is tossed times. What is the probability of exactly two heads?
- What is the expected value of one roll of a fair die?
- Given and , what is ?