Distinct faces in five rolls
A fair die is rolled 5 times. What is the expected number of distinct faces that appear? Give a decimal to four places.
Show hints (2)+
- Indicator that each face shows up at least once.
- .
Answer
Reveal answer →Final answer
3.5887 (± 0.001)
Create a free account to see the full worked solution and track your progress.
Interview format: Numerical Reasoning Tests, Systematic & Data-Driven Trading