(a) For each data set, find the median, midrange, and geometric mean. (b) Are they reason- able measures of central tendency? Explain.
a. Exam scores (9 students)
42, 55, 65, 67, 68, 75, 76, 78, 94
b. GPAs (8 students)
2.25, 2.55, 2.95, 3.02, 3.04, 3.37, 3.51, 3.66
c. Class absences (12 students)
0, 0, 0, 0, 0, 1, 2, 3, 3, 5, 5, 15