I'm having trouble I start to get it and then it doesn't come out right. please help!

its: 0.33 of 1 Data from 14 cities were combined for a 20-year period, and the total 280 city-years included a total of 73 homicides. After finding the mean number of homicides per the Poisson probabilities: city-year, find the probability that a randomly selected city-year has the following numbers of homicides, then compare the actual results to those expected by using Homicides each city-year a. 0 b. 1 Actual results C. 2 d. 3 216 56 and a. P(0) = 7705 cu (Round to four decimal places as needed.) b. P(1) = 2009 45 (Round to four decimal places as needed ) c. P(2) = 0.0262 (Round to four decimal places as needed ) d. P(3) = 0023 (Round to four decimal places as needed ) ba e. P(4) = (Round to four decimal places as needed )