Weekly Challenges

Solve the challenge, share your solution and summit the ranks of our Community!

Also available in | Français | Português | Español | 日本語
IDEAS WANTED

Want to get involved? We're always looking for ideas and content for Weekly Challenges.

SUBMIT YOUR IDEA

Challenge #140: Prove the Birthday Paradox!

Calliecobbs
8 - Asteroid

Here is my solution - this was a fun one!

Spoiler
140.pngScreenshot (252).png
zm1
6 - Meteoroid

Here is mine!

 

Spoiler
challenge_140_zsm_birthday_paradox.png
JoshuaGostick
11 - Bolide

My solution :)

Spoiler
challenge_140.PNG
Spoiler
RichoBsJ
11 - Bolide

Hi! This was a tough one! Here my solution :) :) ;)

 

Spoiler
I solved it with a iterative macro for the 1000 cases...inside another iterative macro for the 49 different sample sizes :)

to reach 75% we need 33 people

challenge_140.png

 

cplewis90
13 - Pulsar
13 - Pulsar

There is probably an easier way to do this, but got a solution.

Spoiler
Challenge 140.PNG
nikolaskardasis
8 - Asteroid
Spoiler
Capture.PNG
Kenda
16 - Nebula
16 - Nebula
Spoiler
2.PNGCapture.PNG
DanHare
11 - Bolide

Good one, think that I'll be using Generate Rows more often now rather than brute force; very elegant.

 

140_GraphResult.PNG

phottovy
13 - Pulsar
13 - Pulsar

I took a slightly different approach to this problem. Since I am more familiar with iterations or loops in python, I used the python tool to solve this problem.

 

challenge_140_results.png

dhtay
8 - Asteroid

Solved. My first time using a macro (and exporting a package)! =)