Independently on each page, the number of typing errors per page in the final draft of a thesis has a Poisson distribution with parameter 0.05.

(a) Find the probability that a randomly chosen page will contain no typing error. [b] Find the probability that ten randomly chosen pages contain more than one typing error. [c] The final draft of the thesis contains a total of 240 pages. What is the probability that the draft contains at most ten typing errors. _ P-' h'H ll.' manna I.' l\\