The Birthday Paradox - Deepstash

# The Birthday Paradox

How many people do you think it would take to survey, on an average, to find two people who share the same birthday?

Well, with the help of probability, sometimes an event is 'more likely to occur' than we believe it to. In this case, If you survey a random group of just 23 people there is actually about a 50–50 chance that two of them will have the same birthday. This is known as the birthday paradox. Don't believe it's true? You can test it and see mathematical probability in action!

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### Probability Distributions

In data science, probability is the percent chance that something will happen. A zero(0) in this case means the event will not occur, while the digit 1 denotes that we are certain it will happen.

### Birthday Blues

Birthday depression can be described as a general sadness on or around your birthday. Birthday blues are very common. Reasons for feeling down around your birthday include:

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### Examples of the egocentric bias

• When you are giving a public talk, you assume that your nervousness is more apparent to others than is actually the case.
• You overestimate the amount of work that you contributed to a group project.
• You might believe that your colleagues all share your political beliefs and s...

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