Random City Name Output Based on Population

meta Given two arrays, one representing city names and the other their corresponding populations. Create a method that randomly outputs a city name with probability proportional to its population. For instance, ny has 7 million people, la has 8 million, and sf has 5 million. ny should be selected with a probability of 7 / (7+8+5). Input Array of city names: [ny, la, sf] Array of populations: [7, 8, 5] Output Randomly output a city name, with the probability proportional to its population. Example Input ['ny', 'la', 'sf'], [7, 8, 5]