# What are the odds of having 2 kids with the same birthday?

## What are the odds of having 2 kids with the same birthday?

The simplest model assumes that there are 365 days in a year, each sibling having the same probability of 1/365 of being born on any of those days, and their births are independent. That implies the probability that they have the same birthday is 1/365.

## How common is it for siblings to share a birthday?

The random odds against five single siblings sharing a birthdate are one in 17,797,577,730 – almost 4 times the world’s population.

What are the chances of 3 generations being born on the same day?

Three generations of one family beat 1 in 130,000 odds to share same birthday. A Merseyside family has beaten the odds to have three generations born on the same date – a one in 130,000 chance. Jaxon Owen was born earlier than expected, on his mum and grandmother’s birthday, on September 27, 2020.

What is it called when two siblings are born on the same day but different years?

The term “Irish Twins” refers to siblings born within a year of each other, and it definitely does happen. While birthing two babies in the span of a year has its challenges, there are also many uniquely special benefits to raising siblings close in age.

### What are the chances of having children born on the same day?

The chance of meeting someone born the same day as you is one in 365, explained Tumulesh Solanky, chair of the math department at the University of New Orleans. He said the chance of two people being born on the same day and having a baby on their birthday is about 1/365 times 1/365.

### What is the largest number of siblings who share the same birthday?

Catherine, Carol, Charles, Claudia and Cecilia were all born on February 20 but in different years. The family was entered into the 1977 Guinness World Records as ‘the only verified record of a family producing five single children with the same date of birth’.

What are the odds of having the same birthday as your parent?

1 in 365 – the odds of parents sharing the same birthday.

“We were all just planning on him, he was the greatest birthday present all of us could have,” he said. The odds of all three generations sharing a birthday are steep. The odds of a father sharing the same birthday with his son are one in 365, assuming each day has an equal probability of being the day of the birth.

## What is the chance that two people have the same birthday?

You can test it and see mathematical probability in action! The birthday paradox, also known as the birthday problem, states that in a random group of 23 people, there is about a 50 percent chance that two people have the same birthday.

## What are the odds of sharing a birthday?

All things being equal, if your birthday is any day except February 29, the odds of you sharing your birthday with anyone should be approximately 1/365 in any population (0.274%).

What is the probability of having the same birthday?

The birthday paradox, also known as the birthday problem, states that in a random group of 23 people, there is about a 50 percent chance that two people have the same birthday.