Question: 13.14 When does controlling have little effect? Refer to the previous exercise. Height has a similar estimated slope for each of the three models. Why

13.14 When does controlling have little effect? Refer to the previous exercise. Height has a similar estimated slope for each of the three models. Why do you think that controlling for % body fat and then age does not change the effect of height much? (Hint: How strongly is height correlated with the other two variables?)

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