a student chosen at random failed a driving test.
To determine the probability of a student chosen at random failing a driving test, we need additional information. Specifically, we need to know the total number of students that were chosen for the driving test, as well as the number of students who failed.
Let's assume that you have this information: There were 100 students chosen for the driving test, and out of those 100, 30 students failed.
To calculate the probability of a student chosen at random failing the test, you divide the number of students who failed by the total number of students:
Probability = Number of students who failed / Total number of students
Probability = 30 / 100
Probability = 0.3 or 30%
Therefore, if you choose a student randomly from this group, there is a 30% chance that they will fail the driving test.
Note: The actual probability may vary depending on the specific circumstances and the criteria for passing or failing the driving test. This calculation assumes that each student has an equal chance of passing or failing.