It' S Easy to Measure the Circumference of a Tree $s$

question 11

Multiple Choice

It' s easy to measure the circumference of a tree' s trunk, but not so easy to measure its height. Foresters developed a model for ponderosa pines that they use to predict the tree' $s$ height (in feet) from the circumference of its trunk (in inches) : $\ln \hat { h } = - 1.2 + 1.4 ( \ln C$ ) . A lumberjack finds a tree with a circumference of $60 ^ { \prime \prime }$ ; how tall does this model estimate the tree to be?

• A) 11 ,
• B) \(83 ^ { \prime }\)
• C) \(93 ^ { \prime }\),
• D) \(19 ^ { \prime }\)
• E) 5 '

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