Question

The probability that an entering student will graduate is 0.4. determine the probability thatout 5 students

(a) none
(b) one
(c) at least one will graduate.

Answer 1

(a) .6⁵ = .07776 =

(b) 5(.4)(.6⁴) = .2592

(c) 1 - .6⁵ = 1 - .07776 = .92224