Question

A researcher tried to analyze the growth data of children aged from 4 to 10. He found that the coefficient r between height and arm length was 1.15, the coefficient r between weight and vital capacity was 0.85ml/kg, and the coefficient r between weight and sex was 0.79.

(1) whether or not the analyzed results correct as above? If not, please state the reasons.

(2) And then the researcher fit a regression equation for the height corresponding to age, the coefficient b is 7.32cm/year, and the constant is 75.80cm. Please calculate the height of a child at the age of 8

Answer 1

Answer:

Cpu did show sites so its for do ys

Explanation:

Because or cuz