# 4.8.1. Collecting, Displaying, and Representing Data

The graph below represents the number of visitors of different museums in the years 2005 and 2006. Determine the year in which the arts museum had more visitors, and find the difference between the number of visitors in the two years.

• A2005, 10
• B2006, 10
• C2005, 60
• D2006, 60

### Example

The graph below represents the number of visitors of different museums in the years 2005 and 2006. Determine the year in which the arts museum had more visitors, and find the difference between the number of visitors in the two years.

• A2005, 10
• B2006, 10
• C2005, 60
• D2006, 60

### Solution

Using the key, we see that the green bars represent visitors in 2005, and the red bars represent visitors in 2006.

Above "Arts", the green bar is taller than the red one, so the arts museum had more visitors in 2005.

Use the height of the bars above "Arts" to find the number of visitors in each year. The green bar goes up to 130, so there were 130 visitors in 2005. The red bar goes up to 120, so there were 120 visitors in 2006.

Subtract to find the difference.

So, the difference is 10 visitors.

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