The example in Chapter 11 of predicting weight from height and sex showed that
a. adding sex as a predictor accounted for an important source of variability.
b. there is a much stronger relationship between height and weight in males than in females.
c. sex is not a useful predictor in this situation.
d. we cannot predict very well, even with two predictors.
A
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a) 250 b) 266 c) 300 d) 330
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