A time series is a set of two-variable data in which a quantity is measured against time. 3. The table below shows a time series for the population of Brampton. Year 1991 1996 2001 2006 2011 Population 234 445 268 251 325 428 433 806 523 911 a) Create a scatter plot of population versus time. b) Does the correlation appear to be linear? Explain. c) In order to determine which relation is the best model for the data, create four separate scatter plots: linear, exponential, degree-2 polynomial, and degree-3 polynomial. For each graph, include the coefficient of determination as well as the equation of the line/curve of best fit. d) Which is the best model for the data? Explain why. Which model do you think would be the appropriate one to represent this relationship? Explain why