As school got back in session this fall, the first grade teachers at a large elementary school posted a list of student birthdays. The teachers noticed that of the 8 first grade classes at the school, 4 of the classes had students with duplicate birthdays. Each of the classes have just 23 students.
Is their observation a statistical anomaly, or it a highly probable?
What are the odds that a class of 23 students has one or more shared birthdays?
A: 5.8%
B: 50.0%
C: 50.7%
D: 75.0%
As always, the correct answer with the best engineering content will be our winner. Submit your responses to geekchallenge@dmcinfo.com.