The following Minitab display gives information regarding the relationship between the body weight of a child (in kilograms) and the metabolic rate of the child (in 100 kcal/ 24 hr).

Predictor Coef SE coef T P

constant 0.39296 0.4148 2.06 0.84

weight 0.8624 0.02978 13.52 0.000

S=0.517508 R-square=96.2%

(a) Write out the least-squares equation.=+x

(b) For each 1 kilogram increase in weight, how much does the metabolic rate of a child increase? (Use 5 decimal places.)

(c) What is the value of the correlation coefficientr? (Use 3 decimal places.)