Final answer:
To calculate the probability that a student opposes the legalization of marijuana, divide the number of students who oppose legalization by the total number of surveyed students.
Step-by-step explanation:
To calculate the probability that a surveyed student opposes the legalization of marijuana, we need to divide the number of students who oppose legalization by the total number of surveyed students. In this case, there were 170 students who said they were opposed out of 416 students surveyed.
The probability can be calculated as:
- Find the number of students who oppose legalization: 170
- Find the total number of surveyed students: 416
- Divide the number of students who oppose legalization by the total number of surveyed students:
Probability = 170 / 416 = 0.4096
Therefore, the probability that a surveyed student opposes legalization of marijuana is approximately 0.4096 or 40.96%.