Question

In a math class with 26 students, a test was given the same day that an assignment was due. There were 18 students who passed the test and 16 students who completed the assignment. There were 14 students who passed the test and also completed the assignment. What is the probability that a student who passed the test did not complete the homework?

Answer 1

Ans : 4 / 26 .

Explanation:

No of students who passed the test = 18

No of students who passed the test and completed the assignment = 14

No of students who passed the test but did not complete the examination

= 18 - 4 = 4

Total no of students = 26

Required probability = 4 / 26 .