How to Generate Random Numbers for Raffles, Games and Sampling

When a decision must be fair, such as a raffle draw, choosing survey participants or picking a number for a game, human choice is biased. A random generator removes bias.

Quick answer

Set the smallest and largest number, how many you need and whether repeats are allowed. Each change draws a new set.

Repeats or not?

• With repeats: every draw is independent, like rolling a die. The same number may appear twice.
• Without repeats: each number appears once, like drawing balls from a bag. Needed for raffles and sampling.

Steps

1. Enter the minimum and maximum.
2. Enter how many numbers.
3. Choose repeats or unique.
4. Read and copy the result.

Ideas

• Raffle: number the tickets 1 to 150 and draw three winners without repeats.
• Classroom: pick 5 student numbers to answer questions.
• Survey sample: choose 20 customers from a list of 500.
• Games: pick a number between 1 and 100 to guess.
• Decision: decide which of 6 options to try first.

Fairness tips

• Announce the range and rules before drawing.
• Show the drawing on screen to the group.
• Do not re-draw because a result is "unlucky".
• For high-stakes lotteries, legal rules may require certified equipment.

About the randomness

The tool uses your browser's random number generator, which is suitable for everyday fairness but not for cryptographic keys.