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

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Answer 2

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It is given that in a group of 3 student , 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?

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Probability that two students are not having same birthday = 0.992

Probability that two students are not having same birthday

= -1 Probability that two students are having same birthday

P (not same birthday) = 1-P (Same birthday)0.992= 1-P (same birthday)

P (same birthday) = 1-0.992

P ( same birthday) = 0.008

So probability that 2 students will have the same birthday is 0.008