Ages of 18 faculty members in a college math department are given as follows. 4|3 represents 43 years.
3 | 2 4 8 9 9
4 | 0 3 5 6 9
5 | 3 4 7 8 9 9
6 | 3 8
A. Find the mean and median age (in years) of the faculty members at Wilmington State.
B. Find the first quartile and third quartile of the age of the faculty members at Wilmington State.
C. Draw a boxplot for the data.
D. If the eldest faculty member retires and is replaced by a 22-year-old, find the new mean and median age. Which one is affected more, mean or median?