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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).
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∙ 12y ago
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How many people does the average child share his or her birthday with?
no
How many people have the same birthday as you?
If there are 300,000,000 people in the US, then on average you share your birthday with over 82,000 people. Of course, if your birthday is 2/29, you would share it with about 1/4th of that number.
How many people share there birthday with someone else?
Everyone shares their birthday with someone or another.
How many people must be in the room in order to guaratnee that at least two people share a birthday?
367
How many people are needed in a room before two of them share the same birthday?
For the chance to be at least 50% that two people share the same birthday, there needs to be 22 people. For the chance to be exactly 100% that two people share the same birthday, there needs to be 366 people. If there was 365 people, there would be a very small chance that each person in the room would have different birthdays. With 366 people, there are not enough individual days for every person to have a different birthday, so there has to be at least one pair.
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 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%
How many people have the Birthday of March 23?
How many people have the birthday of March 23 in the world?
Is it possible to inherit things from people that share the same birthday as you?
No. Unless they are blood-related to you (twins).
Who are the 2 cricketers who share the same birthday?
Thousands of cricketers share the same birthday as another. If you were to specify one cricketer, it would be simple task to find several that share their birthday.
Why do people think having a birthday on valintime is adorible?
Some people think having their birthday on Valentine's Day is adorable because it is a day for love. It is also special when a person can share their birthday with another popular holiday.
What is a hard question for a math teacher?
How many people do you need to have in a room for the odds to be in favour that at least 2 of them will share a birthday?(The answer is 23)Seems easy, but requires a lot.
