In Exercises 9-11 find the fourth-order Fourier approximations to the given functions over the stated intervals. J(x) = x2 over [O, 27T]

KEY { Worksheet : Data The 2003 Tour de France data 1. List as many of the W’s as you can for this data set. Who(individuals) : Winners (or Tour de France) What(Variables) : Year of the race, winner of the race, Country of origin, total time, Average speed, stages, Distance, Starting riders, ▯nishing rid- ers. where : France When: 1903-2011 Why: We don’t know. (not speci▯ed) How: Probably O▯cial Statistics 2. Classify each variable as categorical or quantitative; if quantitative, identify the units. if categorical, identify ordinal/nominal Some variables just tell us what group or category each individual belongs to. We call variables like these categorical (qualitative) variables. When a var