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).PredictorCoefSE CoefTPConstant0.85160.41482.060.84Weight0.409970.0297813.520.000S = 0.517508R-Sq =97.4%

(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.)