Printable worksheet guiding students through a dice rolling experiment to understand probability and chance.

Let’s walk through this dice experiment step by step.

You’re going to roll one die 20 times and record each result using tally marks. Then you’ll count how many times each number came up.

Before you start, think: What do you guess will happen? Will some numbers come up more than others? Or will they all be about the same?

Since a normal die has six sides (numbered 1 to 6), and each side is equally likely, you might guess that each number will come up around 3 or 4 times in 20 rolls — because 20 divided by 6 is about 3.3. But remember — it’s random! So your actual results might be different. That’s okay — that’s what makes it an experiment!

Now, here’s how to do it:

Step 1: Roll the die once.
Step 2: Look at the number on top. Put a tally mark next to that number in your table.
Step 3: Repeat steps 1 and 2 nineteen more times (so you’ve rolled 20 times total).
Step 4: Count your tally marks for each number and write the total in the “Total” column.

Example of what your table might look like after rolling:

Dice Number | Tally | Total
------------|--------------|------
1 | |||| | 4
2 | ||| | 3
3 | |||| | | 5
4 | || | 2
5 | |||| | 4
6 | || | 2

(That adds up to 20 — perfect!)

Your prediction could be something like: “I think each number will come up about 3 or 4 times.” Or maybe: “I think 3 and 5 will come up the most.” There’s no right or wrong prediction — it’s just your guess before you start.

After you finish, compare your results to your prediction. Did any number come up way more or less than you expected? That’s part of learning about chance!

Final Answer:
Roll the die 20 times, record each result with a tally mark, then count the totals for each number. Your prediction can be anything you think — like “each number will appear about 3–4 times.” After rolling, fill in your table and see how close your guess was!