In Exercise 12 we looked at United Nations data about a country's GDP and the average number of people per room (Crowdedness) in housing there. For a re-expression, a student tried the reciprocal €”10000/GDP, representing the number of people per $10,000 of gross domestic product. Here are the results, plotted against Crowdedness:

a) Is this a useful re-expression? Explain.
b) What re-expression would you suggest this student try next?

Transcribed Image Text:

-10 10,000 20 -30 GDP -40 0.5 10 15 2025 3.0 Crowdedness