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In an 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 30 inches of rain?

Respuesta :

To solve this answer, plugin the number 30 into the equation and solve for y.

y= -9.12 + 4.38x
y =  4.38x - 9.12 
y =  4.38(30) - 9.12  = 122.28

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