3. Using weighted mean formula, calculation of cumulative grade average (CGPA) of a college student who received an *A' in English Composition I (4 credits), a 'B in Introduction to Psychology (3 credits), a 'B' in Biology I (4 credits), and a 'D' in Physical Education (3 credits). Assuming A = 4 grade points, B = 3 grade points, C = 2 grade points, D = 1 grade point, and F = 0 grade points, find the student's grade point average