Concept Question Can you tell a child's shoe size by their age? A chart showing shoe size by age for girls was used to obtain the following data. x = age y = shoe size 0 1 1 5 2 7 4 10 5 11 7 12 Part 1 of 3 (i) Construct a scatterplot of the data. (ii) Does there appear to be a linear relationship? Explain why or why not. (iii) Calculate the correlation coefficient. Use the correlation formula r = xy- - Ex - (Ex) n (Ex)(Iy) V n 2 ( (iv) What does this value of correlation suggest?