the jellyfish is back.

Old memories of BP! Reminded of the 50th dinner coming soon! XD

I also remembered one of Mr Chiam's probability question, which i actually remembered until now, since it is a relatively simple to memorise question...

Q: Assuming that out of 3 people, what is the probability that EXACTLY 2 people have the same birthday? Also assume that a year has only 365 days.

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I then tried to improvise. which is like huh?

Q2: What is the total number of combinations for EXACTLY 2 people to have the same birthday in a group of 3? Same assumptions as above.

Q3: Prove that the answer to question 2 is the same as 1 / (Answer to question 1)

Q4: What is the probability that EXACTLY 2 people in a group have the same birthday out of a group of 3? Assuming that a particular person's birthday is on Christmas.

Q5: What is the probability that EXACTLY 2 people in a group have the same birthday out of a group of 3? Assuming that at most only 2 people can have their birthdays on 29th Feb.

Happy solving! ^^

Btw, is there anything wrong with the questions?

10:59 PM