I figured already a and b out but how do I figure out c Plea

I figured already a and b out but how do I figure out c? Please show solution.

The number of surface flaws in a plastic roll used in The interior of automobiles has a Poisson distribution with a mean of 0.05 flaw per square foot of plastic roll. Assume an automobile interior contains 11 square feet of plastic roll. Round your answers to four decimal places (e.g. 98.7654). (a) What is The probability that there are no surface flaws in an auto\'s interior? (b) If 12 cars are sold to a rental company, what is The probability that none of The 12 cars has any surface flaws? (c) If 12 cars are sold to a rental company, what is The probability that at most 2 cars has any surface flaws?

Solution