Student A received the following course grades during her first year of college: 4, 4, 4, 3,

Question:

Student A received the following course grades during her first year of college:
4, 4, 4, 3, 3, 3, 2, 2, 2, 1
Student B received the following course grades during her
first year:
4, 4, 4, 4, 4, 4, 3, 1, 1, 1
(a) Compute the population means and variances.
(b) Which student had the better grade point average?
(c) Which student was more consistent?