Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability distribution of x appears in the table shown below: x 1 2 3 4 5 6 7 p ( x )...

(a) What isP(x = 4)?

P(x = 4) =


(b) What isP(x ≤ 4)?

P(x ≤ 4) =


(c) What is the probability that the selected student is taking at most five courses?

P(at most 5 courses) =


(d) What is the probability that the selected student is taking at least five courses? more than five courses?

P(at least 5 courses) =

P(more than 5 courses) =


(e) CalculateP(3 ≤x ≤ 6) andP(3 x <>

P(3 ≤x ≤ 6) =

P(3 x < 6)="">