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The population aged 65 years old and older (in millions) from 2000 to 2050 is projected to be where t is measured in decades, with
corresponding to 2000. What will be the average population aged 65 years and older over the years from 2000 to 2050?
(Hint: The average population is given by . Multiply the integrand by
and then use the method of substitution.) Please round your answer to one decimal place.
__________ million
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