a. The introduction to this chapter included a table listing the population of the United States from

Question:

a. The introduction to this chapter included a table listing the population of the United States from 1950 to 2000. Use Lagrange interpolation to approximate the population in the years 1940, 1975, and 2020.
b. The population in 1940 was approximately 132,165,000. How accurate do you think your 1975 and 2020 figures are?