Math  /  Data & Statistics

Question3. A regression was run to determine if there is a relationship between the diameter ( xx,ininches) of a silver maple silver and the tree's age ( yy,ininches). The results of the regression are below. Use this to predict the age of a silver maple tree with diameter 22 inches. Round your answer to three decimal places. y=ax+ba=3.679b=0.54r=0.967\begin{array}{l} y=a x+b \\ a=3.679 \\ b=-0.54 \\ r=0.967 \end{array} age of tree: \qquad y=80.936y=80.936

Studdy Solution
Calculate the value of y y :
y=3.679×220.54 y = 3.679 \times 22 - 0.54
y=80.9380.54 y = 80.938 - 0.54
y=80.398 y = 80.398
The predicted age of the tree is:
80.398 \boxed{80.398}

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