We want to estimate the future population for a 20-year design period from last year's census record and estimate the missing data for 2015. Use the method that best fits the data by the least squares method. [Methods: Linear Regression, Exponential Regression]. It is requested to carry out the solution in C ++ programming to optimize the procedure

POPULATION 552 561 580 YEAR 2012 2013 2014 2015 2017 2019 2020 2021 624 650 683 690 Table 1: Population table