Random Number 1 to 20
Pick a random number between 1 and 20, the same odds as a twenty-sided die.
Ready to pick from 1 to 20
How many
1
The odds
There are 20 numbers between 1 and 20, counting both ends, so each one comes up 5% of the time. Each pick is independent: a number appearing once does not make it any less likely next time.
This is the same as rolling a D20, just without the die.