1. Construct a stem-and-leaf plot for the following data on the noise levels measured at 36 different times directly outside the North Avenue Station of the MRT3:

82, 89, 94, 110, 74, 122, 112, 95, 100, 78, 65, 60, 90, 83, 87, 75, 114, 85, 69, 94, 124, 115, 107, 88, 97, 74, 72, 68, 83, 91, 90, 102, 77, 125, 108, 65

2. A student had accumulated 20 credits with the grade of A, 25 credits with B's, 10 credits with C's, and 2 credits with D's. The school uses the grading scale in which A = 4 grade points, B = 3, C = 2 and D = 1.

Required:

Determine the grade point average of the student.