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The event that all 23 people have different birthdays is the same as the event that person 2 does not have the same birthday as person 1, and that person 3 does not have the same birthday as either person 1 or person 2, and so on, and finally that person 23 does not have the same birthday as any of persons 1 through 22. Let these events be ...
Another family in Alabama (mom, dad and baby) share the same Dec. 18th birthday. Huntsville Hospital for Women & Children in Huntsville, where the baby was born, called the occurrence "a chance ...
Each girl was born on the same day, exactly three years apart. That's right — Sophia, 9, Giuliana, 6, Mia, 3, and Valentina, 2.5 weeks old — have the exact same birthday.
A study using the populations of Denmark and Austria (a total of 2,052,680 deaths over the time period) found that although people's life span tended to correlate with their month of birth, there was no consistent birthday effect, and people born in autumn or winter were more likely to die in the months further from their birthday. [8]
Kristin Lammert with her husband, Nick, and their four daughters, aged 3, almost a month, 6, and 9 — who share the same birthday. ... Another thing that people say to us is, "Oh, the poor kids ...
The birthday problem asks, for a set of n randomly chosen people, what is the probability that some pair of them will have the same birthday? The problem itself is mainly concerned with counterintuitive probabilities, but we can also tell by the pigeonhole principle that among 367 people, there is at least one pair of people who share the same ...
'We plan to make every birthday a real family event where birthdays get celebrated individually and together.' News & Star says the chances of having four birthdays on the same day is 133,225 to 1.
A naive application of the even-odd rule gives (,) = = () ()where P(m,n) is the probability of m people having all of n possible birthdays. At least for P(4,7) this formula gives the same answer as above, 525/1024 = 8400/16384, so I'm fairly confident it's right.