Please don't use Pearson turkey method because for this method, because answer is coming wrong

8.11. Should you drop your decision-analysis course? Suppose you faced the following problem: If you drop the course, the anticipated salary in your best job offer will depend on your current GPA: Anticipated Salary Drop = ($4,000 x Current GPA) +$16,000 If you take the course, the anticipated salary in your best job offer will depend on both your current GPA and your overall score (on a scale of 0 to 100) in the course: Anticipated Salary Do Not Drop - 0.6($4,000 Current GPA) +0.4($170 x Course Score) + $16,000 The problem is that you do not know how well you will do in the course. You can, however, assess a distribution for your score. Assum- ing that 90-100 is an A, 80-89 is a B, 7079 a C, 60-69 a D, and 0-59 an F, assess a continuous probability distribution for your numerical score in the course. Use that distribution to decide whether or not to drop the course. Figure 8.21 shows your decision tree. Score in Course Take Course Anticipated Salary -0.6 (54,000 X GPA) +0.4 (5170 X Score) +516,000 Drop Course Anticipated Salary = (4,000 X GPA) -S16,000