Simple to start - following interesting data to its conclusions

The current iteration of this post is from 2019-10-24 This project started after I came across a visualisation of the years of income needed to pay off a house across counties in the U.S. (assuming median house price and median income per region). This seemed like an achievable visualisation, and something I could do. It compelled me to start this blog to record my own projects trying to answer questions using data. That post is a straightforward visualisation using a combination of simple statistics but the data highlights striking differences in relative costs of acquiring a home in the United States. As a resident of the UK, my first obvious question was what does this look like for the UK? From combining the data with what little I know of the U.S.'s geography, peaks in the data appear to correlate with the locations of large cities - so how well does this data correlate with population density? Are there other meaningful correlations that can be drawn? Do such corre...