The following data represents the Accounting grades(Y) for a random sample 12 freshmen at a certain college along with their scores(X1) on an intelligence test administered, no. of classes missed(X2), and the no. of hours(X3) of sleep per day while they were still seniors in high school. 2 3 4 Student Y X1 X2 X3 85 65 1 9 N P 74 50 7 4 76 55 5 5 90 65 2 8 85 55 6 87 70 3 94 65 98 70 UT 10 00 81 55 10 91 70 11 76 50 12 74 55 4 6 Of the 3 independent variables, which has a high correlation to Accounting grade? O Number of hours of sleep O Intelligence test scores O Number of classes missed