[EX03-019] The accompanying data show the number of hours, x, studied for an exam and the grade received, y (y is measured in tens; that is, y  8 means that the grade, rounded to the nearest 10 points, is 80). Draw the scatter diagram. (Retain this solution to use in Exercise 3.38, p. 170.)

x 2 3 3 4 4 5 5 6 6 6 7 7 7 8 8 y 5 5 7 5 7 7 8 6 9 8 7 9 10 8 9