Multiple Choice
A regression analysis between weight (y in kg) and height (x in cm) resulted in the following least-squares line: 
= -20 + 0.5x. Taking this into consideration, if the height is increased by 1 cm, what does this imply about the change in the weight, on average?
A) The weight will increase by 1/2 kg.
B) The weight will increase by 6 kg.
C) The weight will decrease by 1/2 kg.
D) The weight will decrease by 20 kg.
Correct Answer:
Verified
Correct Answer:
Verified
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