A new irrigation system has created with which is split into 100 mtr segments. Product testing has revealed there is an average of 3 faults that leak every segment. it is required to be repaired if 5 or less leaks are found, and needs to be replaced if 7 or more leaks are found.

what is the probability that no faulty leaks will be found in a segment?

what the probability that a segment will need repair?

what is the the probability that a segment will need replacing?

Find the expected number of segments that will need to be replaced for a 10 segment system?