In a study of a 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 Ý = 0.34X + 19.5. What is the expected weight of an 80 cm tall chimpanzee?
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Answer:
46.7 kg
Step-by-step explanation:
y^ = 0.34(80) + 19.5
= 27.2 + 19.5
= 46.7
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