A pediatrician wants to determine the relation that may exist between a child's height and head (d) Determine if a linear relation exists between height and head circumference. (Note that circumference. She randomly selects 8 children, measures their height and head circumference, the linear correlation coefficient between the height and head circumference of a child is and obtains the data shown in the table. r= 0.868.) Height Head Circumference (inches) (inches) Find the critical value. 27.75 17.4 25.75 17.2 The critical value is 26.5 17.2 (Round to three decimal places as needed.) 25.75 16.9 Does a linear relation exist between height and head circumference? 28 17.5 26.5 17.3 O A. No, there is no linear association since r is positive and is less than the critical 25.75 17.1 value. 27 17.4 O B. Yes, there appears to be a positive linear association because r is positive and is less than the critical value. Click here to see the Table of Critical Values for Correlation Coefficient. O C. Yes, there appears to be a positive linear association because r is positive and is greater than the critical value. O D. Yes, there appears to be a negative linear association because r is negative and is less than the negative of the critical value