In order to determine if installing an air quality system would be cost effective, an unairconditioned factory kept records on the reported high temperature readings and employee absenteeism. The regression line for the given data is y=0.449x - 30.27. Determine the residual of a data point for which x=91 y=10. Temperature x - 72,85,91,90,88,98,75,100,80 Number of absences y - 3,7,10,10,8,15,4,15,5