Q has Poisson dist. Q will be observed tomorrow for once. If Q turns out to be a certain #, such as k, the coin will be tossed k times. Let X be the number of times tails come up in k tosses. If Q turns out to be zero, then X is also zero.

1. Find the chance that X is equal to 1. This means that the chance tails comes up exactly once in k tosses. (The answer should be a formula involving parameters of Poisson dist.)

2. Find the chance that X=n. (The answer should be a formula involving parameters of Poisson dist.)