SHOW ALL NECESSARY WORKING PLEASE 1.Percentage of College-Educated Population over 25.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. Do not round answers at intermediate stages. Give your answer to 2 decimal points Find the Coefficient of variation Percentage Frequency mid 15.2-19.6 2 19.7-24.1 8 24.2-28.6 18 28.7-33.1 10 33.2-37.6 6 37.7-42.1 5 42.2-46.6 1