Answer the following questions : which country has the youngest population? what percentage of canada's 2005 population was between the ages of 30 and 44? what is a cohort? provide an example. a human population is said to be "aging" if its members age 0-14 make up less than 30 percent of the population and those age 75 and over make up more than 6 percent of the population. do any of the countries in your lab have an aging population? if so, which ones?