In the following table showing a subset of cases and variables from the Project Talent study ; high school students took aptitude and ability tests and they were asked to indicate their choice of future career. For this analysis, students who selected the following types of future careers were selected : Group 1 , business ; Group 2 , Medicine ; and Group 3 , teaching/social work, four of the achievement and aptitude test scores were used as predictors of career choice (skills). Assume the data are from multivariate normal distributions.