In an Area of the Great Plains, Records Were Kept

question 30

Multiple Choice

In an area of the Great Plains, records were kept on the relationship between the rainfall (in inches) and theyield of wheat (bushels per acre) . Find the equation of the regression line for the given data. Round theregression line values to the nearest thousandth. $\begin{array}{|l|c|c|c|c|c|c|c|c|c|}\text { Rainfall (in inches) , } \mathrm{x} & 10.5 & 8.8 & 13.4 & 12.5 & 18.8 & 10.3 & 7.0 & 15.6 & 16.0 \\\hline \text { Vield (hushels ner acre) y } & 505 & 462 & 588 & 590 & 824 & 492 & 319 & 760 & 788\end{array}$

• A) \(\hat { y } = 4.379 x + 4.267\)
• B) \(\hat { y } = - 4.379 \mathrm { x } + 4.267\)
• C) \(\hat { y } = 4.267 \mathrm { x } + 4.379\)
• D) \(\hat { y } = 4.267 x - 4.379\)

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