Suppose that, for every family vacation trip by car of more than 2,000 km, an average of 0.50 flat tires occurs. Suppose also that the distribution of the number of flat tires per trip of more than 2,000 km is Poisson. Appendix A Statistical Tables *(Round your answer to 4 decimal places, e.g. O.7578 when calculating using Table A.3.) **(Round your answer to 4 decimal places, e.g. O.7589.) a. What is the probability that a family will take a trip of more than 2,000 km and have no flat tires? b. What is the probability that the family will have three or more flat tires on such a trip? c. Suppose trips are independent and the value of A holds for all trips of more than 2,000 km. If a family takes two trips of more than 2,000 km during a summer, what is the probability that the family will have no flat tires on either trip?

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A: Calculated values :  N1 = 200  dN1/dt = 100    N2 = 400  dN2/dt = 160