Marks Scatter Plot 3. h at right, TTU a) draw a line of best fit (LOBF). /1 100 b) pick two points on the LoBF. /1 90 80 Final_Mark 70 /2 ") calculate the slope of your LOBF. 0 0 60 50 6 8 10 12 14 Times_Absent /2 d) write the equation of your LOBF. /1 e) estimate the value of r, the correlation coefficient. (1 1) provide reasoning to explain your estimated r value. (2 g) Use the equation to predict the mark of a student who is absent 14 times. (2 h) Use the equation to predict how many times you can be absent and still pass the course