If the maximum supportable population of the U.S. is 600 million people, use the logistic model to predict the population (in millions of people) of the U.S. in 2010 by using the following years as data points. (Round your answers to one decimal place.) (a) using 1930 and 1940 as data points million people (b) using 1950 and 1960 as data points million people Compare/contrast/explain the different results. The growth rate from part (a) is the growth rate from part (b)