Question 20A researcher wishes to see if there is a relationship between the number of absences and the final grades of seven randomly selected students from a statistics class. The data for the seven students are shown below.Students Hours of Study GradeA 4 72B 2 53C 1 47D 5 78E 2 58F 3 65 a. Construct a scatter plot for the data shown aboveb. IS the relationship positive or negative? Explainc. Which of the two variables is the independent variable? Why?d. When two variables are correlated, can the researcher be sure that one variable causes the other? Why or Why not?