The U.S Department of Transportation maintains statistics for involuntary denial of boarding. In February 2013, the American Airlines rate of involuntary denying boarding was 0,74 per 10,000 passengers. What is the probability that in the next 10,000 passengers, there will be
a. no one involuntary denied boarding?
b. at least one person involuntary denied boarding?
c. at least two persons involuntary denied boarding?