Question: In a study of possible correlation between the height in cm (X) and weight in kg (Y) of chimpanzees, a sample of 40 animals produces

In a study of possible correlation between the height in cm (X) and weight in kg (Y) of chimpanzees, a sample of 40 animals produces a correlation coefficient of r=+0.813 and a regression line with equation . What is the expected weight of an

80 cm tall chimpanzee?

a) 46.7 kg

b) 177.9 kg

c) 24.0 kg

d) 34.8 kg

e) 57.1 kg

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