Problem 4. Gotam city has been divided into m districts. The time an ambulance takes to travel from district I' to district j is rig. The population in each district within the next ve years is represented by random variables Ni. Golham city ofce considers locating a number of ambulances in some of the districts. Assume that if an ambulance is located in your district the travel time is negligible and can be taken as zero. The otce would like to ensure that travel longer than 1;- minutes to reach a resident may occur for no more than 111% of the population. Formulate an optimization problem to help the township to decide where to locate the ambulances, so Illat the travel time requirement is satised with 11.95 probability, while keeping the number ofambulances as small as possible