ex0721: Planetary Distances and Order from the Sun
Description
The first three columns are the names, orders of distance from the sun and
distances from the sun (scaled so that earth is 1) of the 8 planets in our
solar system and the dwarf planet, Pluto. The next three columns are the same,
but also include the asteroid belt.source
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A
Course in Methods of Data Analysis (3rd ed), Cengage Learning.