(C) find the equation of the regression line for the given data. Find the predicted score for a graduate student who solved 16 questions in four days before complex analysis exam. (D) interpret the meaning of the slope.

5) (10 Points) The data below are the complex analysis exam scores of 7 randomly selected graduate students and the number of questions they solved to practice in four days before complex analysis exam. Number of Questions 26 14 22 16 13 18 21 Exam Score 91 86 81 98 82 84 98 a) Which variable do you believe is likely the explanatory variable and which is the response variable? b) Calculate the linear correlation doefficient. Does a linear relation exist between the number of questions they solved and complex analysis exam score? Why or why not