In Rockdale, there are three occupations: Singers, Guitarists and Drummers. All workers are in one of these three occupations. There are 2100 male singers, 3000 male guitarists drivers and 1900 male drummers. There are 2200 female singers, 2500 female guitarists and 2100 female drummers. The Duncan index of dissimilarity in Rockdale is: %. (answer should be exact to two decimal places - the % sign tells you the number will be between 0 and 100, NOT O and 1. A