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What does r2686 tell us about the variation about the

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Tree Circumference and Height

x= 1.89, 1.9, 1.8, 2.4, 5.1, 3.1, 5.5, 5.1, 8.3, 13.7, 5.3, 4.9, 3.7, 3.8

y= 21, 33.5, 24.6, 40.7, 73.2, 24.9, 40.4, 45.3, 53.5, 93.8, 64, 62.7, 47.2, 44.3

a) find the coefficient r.

b) find the linear regression equation

c) use the equation to predict the heightof a tree with a 4.o feet circumfrence.

d) what does R^2=.686 tell us about the variation about the regression line?

e) what is an advantage of being able to determine the height of a tree from its circumfrence?

Reference no: EM13624663

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