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Maths Puzzle
How likely is it that 2 out of 5 children have the same birthday?
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- 1- (364/365)*(363/365)*((362/365)*(361/365)
- 12 years agoHelpfull: Yes(1) No(0)
- If there are 5 children, ABCDE
Probability of not having same birthday as that of A = 364/365
Probability of not having same birthday as that of B = 363/365
Probability of not having same birthday as that of C = 362/365
Probability of not having same birthday as that of D = 361/365
Probability of not having same birthday among all 5 children = (364/365)*(363/365)*((362/365)*(361/365)
Probability of having same birthday by any 2 among all 5 children = 1- (364/365)*(363/365)*((362/365)*(361/365) - 12 years agoHelpfull: Yes(1) No(0)
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