1)Assume the Poisson distribution applies. Use the given mean to find the indicated probability.

Find P(4) when mu=3.

2)A horse race has 13 entries and one person owns 4 of those horses. Assuming that there are no ties, what is the probability that those four horses finish first comma second comma third comma and fourth (regardless of order)?

The probability that the four horses finish first comma second comma third comma and fourth is????