ANT371H1 : 3_pdfsam_MT220_DEC05.pdf
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Eco220 midterm test (december 16, 2005) part i of ii page 3 of 8 (4) based on the tabulation of the variable x below, what is the sample median of x? x | freq. Total | 55,887 100. 00 (a) 2 (b) 2. 5 (c) 3 (d) 5. 5 (e) 6 (5) consider data measuring the grades (x) of a sample of 132 university of toronto students and their salaries 5 years after graduation (y). You compute a sample covariance of 249. 92 (cov(x,y) =
