In one area of Russia, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre). The data for a 9 year period is as follows: The equation of the line of least squares is given as = -9.12 + 4.38x.
-How many bushels of wheat per acre can be predicted if it is expected that there will be 17 inches of rain?
A) 5.96
B) 61.18
C) 65.34
D) 52.06

Question

In one area of Russia, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre). The data for a 9 year period is as follows:  The equation of the line of least squares is given as  = -9.12 + 4.38x. 
-How many bushels of wheat per acre can be predicted if it is expected that there will be 17 inches of rain?
A) 5.96 
B) 61.18 
C) 65.34 
D) 52.06

Quizplus · Accepted Answer

The prediction of bushels of wheat per acre based on rainfall is likely derived from a model or historical data, and 65.34 bushels per acre is the predicted yield for 17 inches of rain.

In One Area of Russia, Records Were Kept on the Relationship