This dataset can be used to address the question of how much corn per acre
should be planted to obtain the highest yield.  Too few plants will give a 
low yield, but too many plants could also give a low yield due to insufficient
moisture and nutrients. 

In a real experiemnt, a number of plots of ground were treated the same except
for the number of corn plants planted per acre.  The yield in bushels per acre
was measured at the end of the season.

The variables are:
     plants -- plants per acre
     yield  -- bushels per acre harvested. 


This dataset is taken from "The Basic Practice of Statistics" by
David Moore.  It is a simplified version of data reported in
Colville, W.L. and McGill, D.P. (1962) "Effect of rate and method of
planting on several plant characters and yield of irrigated corn," Agronomy
Journal, 54, pp. 235-238.