4. Pedestrian accidents in Seattle are on the rise. City ofcials estimate that a busy dangerous pedestrian crossing in the city has 1.25 pedestrian accidents per month. Let X be the number of pedestrian accidents that occur at this intersection over the next six months. a) What probability distribution can you use to model X? b) Calculate the probability that are at most four accidents occur at this busy intersection in the next six months. Write out the equation you need with numbers substituted but solve using R. Copy/paste your R code here