Birthday Paradox Tested in Virtual Simulation

Birthday Paradox states that in a group of 23 people there is a 50% chance that two people will share the same birthday date. I don't trust math and this appeared fishy to me so I decided to create a virtual simulation to test it out.

Chapters:
0:00 Sharing a Birthday Date
1:50 Explanation of Simulation
3:39 Generating Rooms
5:12 Possible Pair Combinations
7:28 How the Chance is Calculated
10:07 Other Tracked Attributes
11:31 Sampling

[brainfeast]

Note: In reality, birthdays are not uniformly distributed. There are biases towards some seasons of the year.

[TAKEASHORTBREAK]

Nice tool and well explained in the video, I share my birthday date with my daughter btw. 😁

[bkucenski]

Instead of doing loads of comparisons, you can take the lists of numbers and create a histogram. Then look for buckets with more than one entry. One loop to fill the histogram. One loop to check for buckets with more than one entry.