Question: For a certain experiment, the Poisson distribution with parameter ? = m has been assigned. Show that a most probable outcome for the experiment is the integer value k such that m - 1 = k = m. Under what conditions will there be two most probable values? Hint: Consider the ratio of successive probabilities.
The link to the textbook is here: https://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/amsbook.mac.pdf