An Aging Population The bar graph shows population figures for 1900 and 2000 and estimated...

An Aging Population The bar graph shows population figures for 1900 and 2000 and estimated population figures for 2050.

a) Estimate the number of people 65 and older in 1900.

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b) Estimate the number of people 65 and older in 2050.

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c) Estimate the increase in the number of people 65 and older from 2000 to 2050.

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d) Estimate the total U.S. population in 2000 by adding the five categories.