Final answer:
The proportion of students that thought illegal drug use was wrong after college is approximately 82%.
Step-by-step explanation:
To find the proportion of students that thought illegal drug use was wrong after college, we need to look at the data provided in the question. The scientist randomly selected 104 students and asked them before college if they thought drug use was wrong. Four years later, the same 104 students were asked again. We need to compare the proportion of students who thought drug use was wrong before college to the proportion after college.
Let's look at the data:
Before CollegeAfter CollegeThought it was wrong7285Thought it was o.k.3219
The proportion of students who thought drug use was wrong after college is calculated by dividing the number of students who thought it was wrong (85) by the total number of students (104). So the proportion is 85/104 = 0.817. Therefore, approximately 82% of students thought drug use was wrong after college.