IXL | Find mean, median, or range from a line plot

Mrs. Copeland's class counted the number of leaf rubbings they had made.

Making leaf rubbings

Leaf rubbings made

What is the range of the numbers?

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Learn with an example

At summer camp, some people collected pine cones.

Finding pine cones

Pine cones found

What is the mean of the numbers?

The mean is the average of the numbers. You find the mean by adding the numbers together and then dividing by the number of numbers in the group.

Read the numbers from the line plot. Each X represents one number.

First, count how many numbers are in the group.

There are 15 numbers.

Now add all the numbers together:

1 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 4 + 5 + 6 + 6 + 6 = 45

Now divide the sum by the number of numbers:

45 ÷ 15 = 3

The mean is 3.

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Now entering the Challenge Zone—are you ready?

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