On Professor Hardtack's last cost accounting exam, the mean score was 71, the median was 77, and the mode was 81. (a) Check the appropriate choice of the distribution, based on the statistics given. a. The distribution should be skewed to the left because the mean is less than the median. b. The distribution should be skewed to the left because the standard deviation is less than the median. c. The distribution should be skewed to the right because the mean is less than the median. d. The distribution should be skewed to the right because the coefficient of variance is less than the median. (b) Select the factor that might cause the distribution to be like this. (You may select more than one answer. Click the box with a check mark for the correct answer and double click to empty the box for the wrong answer.) a. Many students did not study for the exam b. No students scored a C c. Few students did not study for the exam d. Most students scored a C or higher