4 ms·

Am I missing something or are they not both linear?

• jacalata 11y ago
  It's income rank, rather than actual income. In my explanatory text they mention that the difference between two points on the far left is a few hundred dollars and the difference between two points on the right is a million or so (I forget the actual numbers).
• bildung 11y ago
  As jacalata described, the actual income differences in dollars are not distributed linearly across the y axis. Each percentile interval represents a different dollar interval. The y axis uses percentages, too. But it displays an absolute number of people, so the number of people in the 10-20% bracket equals those in the 80-90% bracket and so on. The actual number of children won't be the same for each income bracket, but the are evenly distributed on the y axis. I think :)