5.(b) Out of students, two sections of and are formed. If you and your friend are among the students, what is the probability that
(b) you both enter the different sections?
Total number of students = 100
Let A and B be the two sections consisting of 40 and 60 students respectively.
We found out in (a) that the probability that both students are in same section is
(b) Probability that both the students are in different section =