Population of the United States The population of the United States (in millions) by decade is given in the table, where t is the number of years alter 1910. These data are plotted and fitted with a smooth curve
- a. Compute the average rate of population growth from 1950 to 1960.
- b. Explain why the average rate of growth from 1950 to 1960 is a good approximation to the (instantaneous) rate of growth in 1955.
- c. Estimate the instantaneous rate of growth in 1985.
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