Question 7 Every day, the 30 employees at an auto plant each have probability 0.03 of having one accident and zero probability of having more than one accident. Given there was an accident, the probability of it being major is 0.01. All other accidents are minor. The numbers and severities of employee accidents are mutually independent. Let X and Y represent the numbers of major accidents and minor accidents, respectively, occurring in the plant today. Determine the joint moment generating function, Mx,y(s, t)