In the attached file for regression, identify Independent and dependent variables. Also find regression equation by drawing the charts for i) Hours spend studying and Exam Score ii) IQ Score and school rating iii) Exam score and Hour spend sleeping.

Hours spent Hours spent School studying Exam score 1Q score sleeping rating Hours spent studying 1.00 0.82 0.48 -0.22 0.36 Exam score 0.82 1.00 0.33 -0.04 0.23 IQ score 0.08 0.33 1.00 0.06 0.02 Hours spent sleeping -0.22 -0.04 0.06 1.00 0.12 School rating 0.36 0.23 0.02 0.12 1.00