The table gives estimates of the world population, in millions, from 1750 to 2000.
(a) Use the exponential model and the population figures for 1750 and 1800 to predict the world population in 1900 and 1950. Compare with the actual figures.
(b) Use the exponential model and the population figures for 1850 and 1900 to predict the world population in 1950. Compare with the actual population.
(c) Use the exponential model and the population figures for 1900 and 1950 to predict the world population in 2000. Compare with the actual population and try to explain the discrepancy.

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Year PopulationYear Population 1750 1800 1850 790 980 1260 1900 1950 2000 1650 2560 6080