Probability of 2+ Birthdays Matching in a Class of 25

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Homework Help Overview

The problem involves determining the probability that at least two students in a class of 25 share the same birthday, assuming a year has 365 days. This is related to the concept known as the birthday paradox.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster expresses uncertainty about the techniques to approach the problem. One participant suggests calculating the probability of all students having different birthdays and then subtracting that from 1. Another participant questions the probability calculation for just two students having different birthdays.

Discussion Status

The discussion is ongoing, with participants exploring different methods to approach the problem. Some guidance has been offered regarding the initial steps to take, but there is no explicit consensus on the approach yet.

Contextual Notes

The original poster indicates that this is a thinking question, which may imply constraints on the methods that can be used or the level of detail expected in the solution.

six789
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this is the problem...
there are 25 students in a Data Management Class. Determine the probability that at keast two of them share the same birthday. (Assume that every year has 365 days)
--> i have no clue what technique what to do here... coz this is a thinking question so its kinda hard for me...
 
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Well, the way to do this is to work out the probability of each of them having different birthdays, then subtract that from 1. For starters, if there were only 2 people in the class, what is the probability that they would have different birthdays?
 
is it 1-(364/365)?
 
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