a. For these data, use the least-squares method to find the best fit of the exponential model. (Give all answers correct to at least two decimal places.) The growth rate is The population in 1900 was The population in 2010 was The population in 2100 will be How long after 1900 did the population reach 100,000? years %. The model is b. For these data, use the least-squares method to find the best fit of the quadratic model. (Give your answer in terms of t and enter all values correct to at least four decimal places.) thousand people. thousand people. This means the model predicts that the population of Raleigh in 1900 was thousand people. c. The prediction made in part (b) is unreasonable because of which of the following reasons? (Select all that apply.) It says the population in 1900 was greater than the population in 1920. It's based on a quadratic model, but there is no reason to think that a quadratic function is a reasonable model for a growing population. The predictions the same model makes for what happens in 2010 and 2100 seem low. Excel doesn't use the quadratic model for best-fit; why should we? 20 30 40 thousand people. years after 1900 50 60 70 80 90 Population of Raleigh (in thousands) 24 37.3 46.8 65.6 93.9 122 150 212