all the instructions are listed in the pdf attached
MATH 252 Day 1 Worksheet Due 7 February 2022 Consider Hartford’s crime rate (of some measurement) and unemployment rate. Year Crime Rate Percent Unemployment 2010 589.1 9.6% 2011 609.7 9.0% 2012 582.2 8.3% 2013 544.3 7.9% 2014 524.4 6.6% 2015 564.0 5.6% 2016 521.6 4.9% 2017 520.7 4.4% 2018 481.6 3.9% 2019 379.9 3.6% Day 1 Worksheet Due 7 February 2022 Listing 1: Hartford Crime, Unemployment Rates 1 % data format: year, crime rate, unemployment rate 2 hartfordData(1,:) = [2010, 589.1, 9.6]; 3 hartfordData(2,:) = [2011, 609.7, 9.0]; 4 hartfordData(3,:) = [2012, 582.2, 8.3]; 5 hartfordData(4,:) = [2013, 544.3, 7.9]; 6 hartfordData(5,:) = [2014, 524.4, 6.6]; 7 hartfordData(6,:) = [2015, 564.0, 5.6]; 8 hartfordData(7,:) = [2016, 521.6, 4.9]; 9 hartfordData(8,:) = [2017, 520.7, 4.4]; 10 hartfordData(9,:) = [2018, 481.6, 3.9]; 11 hartfordData(10,:) = [2019, 379.9, 3.6]; 12 13 crime = hartfordData(:,2); 14 unemployment = hartfordData(:,3); 15 16 scatter(unemployment,crime,'filled','o') 1. What does each line of the code above do? How are items being stored in MATLAB (scalars, vectors, matrices, etc.)? A template for the code above is saved on Moodle with the file hartford_crime_unemployment_class.m. 2. In MATLAB, use the code from lecture (about net income of Meta) as a starting point to construct a linear and quadratic fit for the data. Save your script as a .m file with the form: YourLastNames_Day1Groupwork.m. 3. Is a linear fit appropriate? What about a quadratic fit? In MATLAB, measure the error of each fit. 4. What about a ninth-order polynomial– is it appropriate? It goes through every point (i.e., the error of the fit is 0), but why is this probably not the best option to model this data set? 5. What are other options we could consider in looking for trends with this data? What other relationships between the three variables listed could we look at? 6. Is our model (either linear or quadratic) good? Justify your answer. 7. How would you go about predicting the crime rate for 2020 if the unemployment rate that year was 7.7%? Then, make a prediction about the crime rate for a year with of 7.7% unemployment. Justify your answer.