Problem
First name
Dylan Pentland
School
The Newman School
Country
Age
16
Email address
csaunders@newmanboston.org
The probability that one person does not share your number is 224/225. Since the probability of each person is independent, the probability that no one matches your number is (224/225)^29. This is the negation of what we want so the answer is 1 - (224/225)^29, which is about 12.1%.