only part b or c

A market analyst wants to predict the aptitude test score for new employees based on their IQ score in YYY country. The IQ score (X) and the aptitude test score (Y) for 10 randomly selected new employees are summarized as follows. [x-990, [ Y =960, [ x2 - 98292, [ v2 = 92406, ) XY = 95276 Correct the final answers to 2 decimal places. (a) Find the simple linear regression line for predicting the aptitude test score for new employees by the least squares method. (b) Compute the covariance. (c) Calculate the coefficient of determination