Hi everyone I am having trouble with this question...

Increased research and discussion have focused on the number of illnesses involving the organism Escherichia coli (01257:H7), which causes a breakdown of red blood cells and intestinal haemorrhages in it's victims 5 According to the Center For Disease Control, an estimated 73,000 Cases of E Coli infection and 61 Deaths occur in the US each year. A 2006 outbreak traced to wild pigs, who spread the bacteria into a spinach field in california, sickened 204 people in 26 states and 1 Canadian Province.6Outbreaks have occurred at a rate of 2.5 per 100,000. let us suppose this rate has not changed .

A) What is the probability that at most cases of ecoli per 100,000 are reported in california

this year ?

B) What is the probability that more than five cases of ecoli are reported this year ?

C) Approximately 95% of occurences of E coli involve at most how many cases. ?