The following table shows the mean, standard deviation, 10", 25, 75", and 90" percentiles for students' grades in classes A and B. Mean SD P10 P25 P75 P90 Class A 67 Class B 10 37 74 26 58 76 97 36 41 67 89 Do not enter % symbol into the answer boxes. Round to 1 decimal place if necessary to round. a. If the distribution of scores in Class A is symmetric, then their median is b. The top 25% of students in Class A scored at least C. % of students in Class A scored between 37 and 97. d. The interquartile range for Class A is e. The coefficient of variation for Class A is %. f. Scores in Class B are: positively skewed symmetric negatively skewed