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# How many people share your birthday?

Updated: 12/8/2022

Wiki User

11y ago

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On average every day there are 1.9 million people celebrating their birthday. That is the total global population (7 billion) divided by the number of days in a year (365).

Wiki User

11y ago
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### Approximately how many people was born on 28th August 1985?

Approxiamately six million people are born share a birthday so if you were born on that day you share your birthday with about six million people.

### How many people in school share a birthday?

There cannot be a definite answer. There can only be a probabilistic answer of the number of people who might be expected to share a birthday. However, in order to do that it is necessary to know how many people there are in the school. And since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.

### How many People share a birthday?

At least 100 all over the world.

### How many people share the same birthday on average in the world?

estimating about 5000

### How many people around the world share the same birthday as you?

A person shares their birthday with at least nine million different people around the world.

### On average how many people share the same birthday?

On average, in the entire world about twenty eight thousand people will have the same birthday as one another. In a room full of people, there should be two people who have the same birthday.

### How many people have the same birthday as you do?

Let's see. Given the fact that a baby is born every 3 seconds, and there are 86,400 seconds in a day, we divide that and we get 28,800. So 28,800 people in the world share the same birthday as you do :)

### What is the probability that 25 people dont share the same birthday?

The probability that 25 random people don't ALL share the same birthday is: 1 - (1/365)**24, or about 0.999999999999999999999999999999999999999999999999999999999999968 However, I suspect you meant to ask "What is the probability that 25 random people all have different birthdays?" That is: 1 * (364/365) * (363/365) * (362/365) * ... * (342/365) * (341/365) = 0.4313 So about 43% of the time nobody will share a birthday, and 57% of the time, two or more people will share a birthday.

### What famous people have share the same birthday as you February 7th?

Sonnay and alex are bored

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

23. The probability that at least two people in a room share a birthday can be expressed more simply, mathematically, as 1 minus the probability that nobody in the room shares a birthday.Imagine a fairly simple example of a room with only three people. The probability that any two share a birthday is :1 - [ 365/365 x 364/365 x 363/365]i.e. 1-P(none of them share a birthday)=1 - [ (365x364x363) / 3653 ]=0.8%Similarly,P(any two share a birthday in a room of 4 people)= 1 - [ 365x364x363x362 / 3654 ] = 1.6%If you keep following that logic eventually you getP(any two share a birthday in a room of 23 people)=1 - [(365x364x...x344x343) / 36523 ] = 51%

### Is it possible to inherit things from people that share the same birthday as you?

No. Unless they are blood-related to you (twins).

### How many people have the Birthday of March 23?

How many people have the birthday of March 23 in the world?