In a survey of 1,000 students at the University of Liberia, 950 indicated that they were freshmen students. Find the probability that at least one of the four randomly chosen students from the institution is a senior student.

Solution:

P=950/1000 = 0.95

P(at least 1 of 4)= 1-(1-0.95)^4 = 0.9999

So the probability that at least one of the four randomly chosen students from the institution is a senior student is 0.9999