Every school day, Mr. Kelley asks a randomly selected student to complete a homework
problem on the board. If the selected student received a "B" or higher on the last test, the
student may use a "pass," and a different student will be selected instead. Suppose that on
one particular day, the following is true of Mr. Kelley's students:
18 of 32 students have completed the homework assignment;
8 students have a pass they can use; and
6 students have a pass and have completed the assignment.
What is the probability that the first student Mr. Kelley selects has a pass or has completed
the homework assignment?
