solution

In France, the second round of presidential elections involves top two candidates. Assume that the second round of elections are scheduled to be held in next week and you have a dataset, collected through a general public survey, about which candidate is expected to lead and by how much percentage in each of 27 administrative regions (Provinces) of France. Suggest an effective interactive visualization of the data so as to better comprehend the possible voting trends in the second round? Be clear about how would you represent the data, which visual variable(s) would you use, and the possible interactions. You can draw sketches when necessary.