Video: Comparing Data in a Double Bar Graph

The bar chart shows the savings of Mona and Sarah over four months of a year. Who has the highest total savings?

03:15

Video Transcript

The bar chart shows the savings of Mona and Sarah over four months of a year. Who has the highest total savings?

First, let’s see what this chart is saying. We know that it’s listing the savings in pounds. And we have listed their savings for four months of the year: January, February, March, and April.

We also are given a key that’s color-coded. All of the red bars will show us how much money Mona saved. And all of the green bars will show us how much money Sarah saved.

To find the highest total of savings, we’ll first have to total Mona’s savings and Sarah’s savings separately. We need to add how much money Mona saved in January, February, March, and April.

Start by looking at January. And then observe the red bar. This bar goes to the 10 in January. Mona saved 10 pounds. We do the same thing for February. Check the red bar, which goes to the 30 line. In February, Mona saved 30 pounds. In March, Mona saved the same amount as February, 30 pounds.

And the bar for Mona’s savings in April goes all the way to 50. In April, she saved 50 pounds. From there, we need to add her savings in January, February, March, and April to find Mona’s total savings. In the first four months of the year, Mona saved 120 pounds.

But remember, our question is asking who has the highest total savings, which means we’ll need to also find how much money Sarah saved. To do this, we’ll follow the same procedure. Starting in January, Sarah saved 20 pounds. In February, she saved 50 pounds. In March, she saved only 10 pounds. And in April, she saved 30 pounds.

From here, we need to total Sarah’s savings, add them all together. In the first four months of the year, Sarah saved 110 pounds. And our question wants to know who had the highest total savings, Mona or Sarah. Mona saved 10 pounds more than Sarah did. She had the highest total of savings.

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