* What is the average time it takes to mine a block?
* If I choose a time uniformly what is the expected time it will take to mine that particular block.
The difference between them being that blocks that take a long time occupy more space on the timeline than shorter blocks and are therefore more likely to be chosen.
>What is the average time it takes to mine a block?
How do you get this question from CyrusL's original question? CyrusL explicitly specifies that it is 10 minutes per block [0], and that he is uniformly picking a point in time.
[0] Admittedly, he does not specify that it is a Poisson distribution.
* If I choose a time uniformly what is the expected time it will take to mine that particular block.
The difference between them being that blocks that take a long time occupy more space on the timeline than shorter blocks and are therefore more likely to be chosen.