I have a problem:
If you have 10 balls labeled from 1 to 10, is the probability that the number of the draw matches the number of the ball $$1 - d(10)/10!$$ where $d(10)$ is the number of derangements of 10 balls?
I have a problem:
If you have 10 balls labeled from 1 to 10, is the probability that the number of the draw matches the number of the ball $$1 - d(10)/10!$$ where $d(10)$ is the number of derangements of 10 balls?