There are 5000 undergraduates registered at a certain college. Of them, 453 are taking one course, 670 are taking two courses, 565 are taking three courses, 1889 are taking four courses, 1332 are taking five courses, and 91 are taking six courses. Let X be the number of courses taken by a student randomly sampled.
x 1 2 3 4 5 6
P(x) 453 670 565 1889 1332 91