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Portable Network Graphic  |  1993-07-16  |  1.9 KB  |  283x121  |  1-bit (2 colors)
   ocr: datapoint (X,9) 9e - - i i - - (trend Regression line) - i=1 E,x4 xy - - slope - m - UX2 - y1 intercept - b= y-mx - intercept X1 Xe correlation - r= oy2 méaxe I (b)