Four upper level undergraduate students are available to serve on a committee.
Student
|
Gender
|
Year in school
|
1
|
M
|
Junior
|
2
|
M
|
Senior
|
3
|
F
|
Junior
|
4
|
F
|
Senior
|
Two students will be selected at random to serve on the committee. Let
A: The students selected are of the same gender.
B: The students selected are the same year in school.
Find the probability of A ∪ B .