Learning Objectives for Exam II ENGR 19500 – Spring 2010 Please also review Learning Objectives from Exam I. While the emphasis of Exam II will be on new material, you are still responsible for material covered during the first exam period. Week # Learning Objectives 4 Convert among data representations: a verbal description, paired data, a graph, and an equation (linear relationships only) Explain the purpose of a trendline in an x-y graph Interpret graphs based on the slope of the trendline Produce the equation of a regression line, plot the raw data and fitted line, and calculate r 2 using MATLAB • Use MATLAB’s polyfit command to find the coefficients of the regression equation • Use MATLAB’s polyval command to generate fitted data to plot over the raw data Produce the equation of a regression line, plot the raw data and fitted line, and calculate r 2 using Excel • Use Excel to plot a linear trendline over the raw data and display the equation and r 2 value
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