Dot plot of 2, 3, 3, 4, 2, 5, 3

Step by step

The question

Question: draw a dot plot of 2, 3, 3, 4, 2, 5 and 3.

Which value is the most common?

1 Draw the number line

The number line goes from the smallest number, 2, to the biggest, 5.

2 Put the dots

The first number is 2.

We cross it out, and put a dot over 2.

Next is 3: a dot over 3.

Another 3: its dot goes on top of the first one.

Every number is crossed out, so every number has its dot.

3 Read the plot

The tallest stack is over 3.

It has 3 dots.

So the most common value, the mode, is 3.

4 Check

Let's check in the list: 3 comes 3 times.

No number comes more often.

So it is right!

Let's look back.

First: draw the number line.

Then: put the dots.

Then: read the plot.

Last: check.