Random Number Generator
Set your range, choose how many numbers you need, and generate. Built for statistics simulations — works anywhere.
How to use this in a simulation
Assign numbers to outcomes
Decide which numbers represent which outcomes. For example, if a free throw is made 70% of the time, assign 1–7 to "made" and 8–10 to "missed."
Set your range and count
Enter the min and max that match your outcome assignment. Set the count to the number of trials you want to simulate.
Generate and read your results
Each number maps back to an outcome. Count how many fall in each category to estimate the probability of your event.
Repeat for accuracy
Run multiple trials and average your results. The more trials you run, the closer your estimate gets to the true probability.
Used in Real World Statistics
This tool is built into the simulation lessons in Real World Statistics — a statistics textbook designed to make data analysis approachable and meaningful for high school students.
Learn more about Real World Statistics