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by hi025 at December 12, 2009

the median age of a certain country,s populaiton, y,for each year x after 1820 (x=0 corresponds to1820,x=1 corresponds to 1821, etc.) can be approximated by the following linear equation:y=0.09x+17.7

a) Compute the median agesof the populaiton in 1820,1850, and 1990.

b) Describe what the slope represent inthe equation