About Practical Research 2

Activity 3: What's My Relationship? Directions: Here's the data about the Math Pretest and Posttest scores of ten (10) Grade 12 students of Purok A City High School. Is there a significant relationship between the pretest and posttest scores in Math? Student Pretest Posttest 1 49 45 32 37 3 34 39 45 47 41 40 20 40 27 39 8 32 9 45 37 10 41 31 48 35 1. Compute the value Pearson's r. 2. Interpretation: 3. What linear equation best predicts the posttest given the pretest in Math? 4. If a student made a pretest score of 43 in Math, what grade would you expect the posttest score the student will obtain? 5. Show the line of best fit and its interpretation