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First part: What is the probability that at least two of N randomly selected people have the same birthday? (Same month and day, but not necessarily the same year.)

Second part: How large must N be so that the probability is greater than 50 percent?





Assume these:

-Nobody was born on February 29.
-People's birthdays are equally distributed over the other 365 days of the year.

2007-01-27 10:00:58 · 5 answers · asked by Anonymous in Entertainment & Music Jokes & Riddles

5 answers

2/730???? so, 0.027%....????
If the birthdays are evenly distributed, then there is a person for each day of the year?

I can't see how the probability could be over 50% (that is, if I am going about it the right way, which I may very well not be)

Can't wait to see the answer. Can you e-mail it to me?

2007-01-27 13:14:17 · answer #1 · answered by fayra_elm 4 · 0 1

A determined determination! lol btw: it ought to't be the fort's shadow. because 1000 adult adult males ought to postpone a huge mirror, and, utilising the sunlight, shine it at an attitude in the route of the fort. Voila! The shadow strikes... right here's a better riddle: what's large, complicated, and finished of semen?

2016-10-16 04:48:09 · answer #2 · answered by porterii 4 · 0 0

I have NO idea but my parents were both born on the same day in December and my grandparents were both born on the same day in June!

2007-01-30 21:57:49 · answer #3 · answered by Barb 1 · 1 0

about 50% probability

N=100% of the population

Dunno really, just a guess....I do know I want the 10 points though....LOL

2007-01-27 11:21:28 · answer #4 · answered by foxieroxie1969 3 · 0 1

the probability is 99.999999999999999999999999999999999%

2007-01-27 11:14:14 · answer #5 · answered by hendrik k 2 · 0 1

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