An average of 6.3 robberies occurs per day in a large city. a. Using the Poisson formula,

Question:

An average of 6.3 robberies occurs per day in a large city.
a. Using the Poisson formula, find the probability that on a given day exactly 3 robberies will occur in this city.
b. Using the appropriate probabilities table from Appendix C, find the probability that on a given day the number of robberies that will occur in this city is
i. At least 12
ii. At most 3
iii. 2 to 6