how do you determine whether a crime watch group is effective? how do you use a poisson distribution how many crimes per year are committed in the neighborhood by crime watch groups how does poisson distribution work how do you calculate crime by poisson distribution what is the probability of a crime watch group becoming effective? average crimes per year how to calculate crime watch how to calculate crime watch crime rates how to calculate crime watch why do crime watch groups need to be formed how to find probability of crime by poisson distribution how to calculate crime watch how to calculate probability do neighborhood crime watch groups increase crime crime watch how many crime committed how to calculate crime watch how many crimes in each neighborhood how to do a parsimony distribution average crimes in neighborhood crime watch