The Total solution for NCERT class 6-12
It is given that ina group of 3 students, the probability of 2 students not having the samebirthday is 0.992. What is the probability that the 2 students have the samebirthday?
Let the event wherein 2 students having thesame birthday be E
Given, P(E) = 0.992
We know,
P(E)+P(not E) = 1
Or, P(not E) = 1–0.992 = 0.008
∴ The probability that the 2 students have the same birthday is0.008