The population of an island has increased over the past 30 years, and is expected to continue to increase in 2020. Find an approximate value for the mean populatio for the 40-year period given in the population chart below. 1980 1990 2000 2010 2020* Population Population Population Population Population 96,000 120,000 148,000 162,000 191,000 *estimated ..... The approximate mean population for the island is people.

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