# If I have a number generator that ranges from 1-100...

Okay, so here's the scenario.

There is a random number generator that generates any number from 1-100, with every number receiving equal likelihood of getting picked. What are the odds that, if one hundred numbers are picked, they will contain numbers 1-100 with no duplicates?

69
Whats goes around must come down
THE FORUM UPDATE KILLED THE GRADIENT STAR

Baltimore Orioles: 2014 AL Eastern Division Champions, 2017: 73-78
Baltimore Ravens: 2012 World Champions, 2017: 2-0
2017 NFL Pick 'Em: 24-7
Not very good.
9.3*10^-43 if I did it right.
I did 100!/(100^100)
Quote by metal4eva_22
Not very good.

this. you don't need mathematics to know this shit
banned
I made this on Excel just now. Probability of what you said for random numbers from 1 to x.

As you can see it's already tiny for random numbers 1-10.

EDIT: I know someone's going to be an arsehole and say that I can't use a line but whatever
Last edited by sickman411 at Jan 6, 2014,
I feel like this is a homework question
Quote by Sliide90027
But as a bigoted lemming, you have so cry an Alinslyite slur revealing you lack of reason and sense.

Quote by MusicLord16
BOB 1. ur 20 and two u like evil things and idk if u worship the devil
Quote by Bob_Sacamano
I feel like this is a homework question

I'm not sure. Most calculators can't deal with numbers as large as 100! or 100^100 (which apparently is about 10^42 times larger).

Unless the homework question was just the expression.
it would be the same 1/100th of a chance each and every draw.
Quote by BlackVoid
Every guitar and bass forum I've visited has some people chasing some magical tone that will shoot jizzing unicorns riding on a rainbow out of their amp.
It wasn't a homework question, I just pulled it out of my butt cause I was a-thinkin'. thanks for satiating my curiosity.