Question

It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?

Answer 1

Probability that two students are not having same birthday $P (\overline E ) = 0.992$
Probability that two students are having same birthday $P (E) = 1 - P ( \overline E) = 1 - 0.992 = 0.008$