Below are the percentages of the population over 25 years of age who have completed 4 years

Question:

Below are the percentages of the population over 25 years of age who have completed 4 years of college or more for the 50 states and the District of Columbia. Find the mean and modal class.
Percentage Frequency
15.2–19.6 .......3
19.7–24.1........15
24.2–28.6........19
28.7–33.1.......6
33.2–37.6.......7
37.7–42.1 .......0
42.2–46.6 .......1
Find the :
Mean
Modal class