Based on 7, 8 3 5 previous examinees who subsequently attended a major university, the expectancy table in Table 3.6 provides the probability of achieving certain first – year college as a function of score on the American College Testing (ACT) examination. The ACT test is typically given to high school seniors who have expressed an interest in attending college. The first column of the table shows ACT test scores, divided into 10 class intervals. The second column gives the number of students whose scores fell into each interval. The remaining entries in each row show the percentage of students within each test – score interval who subsequently received grade points within a designated range. For example, of the 117 students who scored 31 to 33 points on the ACT, only 2 percent received a first – year college point average below 1.50, while 64 percent earned superlative grades of 3.50 up of a perfect A or 4.00. At the other extreme, of the 102 students who scored below 10 points on the ACT, fully 80 percent (60 percent plus 20 percent) received first – year collage grades below a C average of 2.00.