A report on high school graduation stated that 85 percent of high school students graduate.Suppose 3 high school students are randomly selected from different schools.
What is the probability that none graduates?
A)0.019
B)0.003
C)0.614
D)0.057
E)0.150

Question

Quizplus · Accepted Answer

The probability that one student does not graduate is 1-0.85=0.15. 
Since the students are selected randomly and independently, the probability that none of them graduate is (0.15)^3 = 0.003. 
Therefore, the correct answer is option B.

A Report on High School Graduation Stated That 85 Percent