The chart plots f of C O V sub x versus C O V sub x percent for three cases of C O V sub x equal to 10 percent, 20 percent, and 30 percent. The 10 percent curve peaks near 16.5 with a narrow spread. The 20 percent curve peaks near 33.5 with a moderate spread. The 30 percent curve peaks near 51.2 with the widest spread. As C O V sub x increases, the distribution shifts to higher values and becomes broader.