math
posted by Jenny on .
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 birthday is 50% or more is... a class of 23 people. (The probability is about 50.73%.)

The smallest number of people in a room where the probability of two of them having the same birthday is at least 50 percent.