Math
What is the probability of in a room with 15 people, there will be at least one shared birthday?
asked by
Jonah

from Google:
In a room of just 23 people there's a 5050 chance of two people having the same birthday. In a room of 75 there's a 99.9% chance of two people matching. Put down the calculator and pitchfork, I don't speak heresy. The birthday paradox is strange, counterintuitive, and completely true.posted by PsyDAG
Respond to this Question
Similar Questions

math
the smallest number of people in a room where the probability of two of them having the same birthday is at least 50 percent. Answer is between 1 and 31. This is a classic problem given in probability classes. There are plenty of 
math
the smallest number of people in a room where the probability of two of them having the same birthday is at least fifty percent Please post under one name. The smallest class where the chance of finding two people with the same 
Probability Help
Forty people are selected at random. What is the probability that none of the people in this group have the same birthday? 
Probability Help
Forty people are selected at random. What is the probability that none of the people in this group have the same birthday? 
Probability Help
Fourty people are selected at random. What is the probability that none of the people in this group have the same birthday? 
MATH, HELP
what is the probability that at least 2 students in a class of 36 have the same birthday? Do i punch this in to the calculator or how did you found this way or method for your solution: Log(365!) = 1792.3316 Log(329!) = 1581.7202 
INTERESTING FACT AND CHRISTMAS
TOMMOROW IS CHRISTMAS AND ALSO MY AUNT'S BIRTHDAY.SO WE ARE GOING TO CELEBRATE BOTH. ISN'T IT A INTERESTING FACT! I WONDER HOW MANY PEOPLE'S BIRTHDAY IN THIS WORLD IS AT DECEMBER 25! Yes, it is an interesting fact. I don't how 
Algebra
How many people must be in a room to be sure that at least 4 of them have the same birthday? 
statistic
Let's assume there are 3 people in Room A and another 3 people in Room B. The ages of the people in Room A are 25, 25, and 25. The ages of the people in Room B are: 10, 25, and 40. The mean of the ages in both rooms is 25. Does 
Probabability
You walk into a classroom containing 20 other people. What is the probability that at least one of the other people has the same birthday (month and day) as you?