Data on corn yield and rainfall in six U.S. corn–producing states (Iowa, Nebraska, Illinois, Indiana, Missouri and Ohio), recorded for each year from 1890 to 1927.
year of observation (1890–1927)
average corn yield for the six states (in bu/acre)
average rainfall in the six states (in in/year)
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Ezekiel, M. and Fox, K.A. (1959). Methods of Correlation and Regression Analysis, John Wiley \& Sons, New York.
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