2. bar graph- a graph that compares data by using vertical or horizontal bars. axis- (pl. axes) the horizontal or vertical number line on a graph. interval- the difference between adjacent numbers on an axis of a graph. double-bar graph- a bar graph that compares two related groups of data.

3. CountryMedals China63 Germany49 Russia92 United States 102 The following data table displays information from the 2004 Summer Olympics. We will use this data to make a bar graph.

4. 0 20 40 60 80 100 120 ChinaGermanyRussiaUnited States Number of Medals Countries Final Medal Standings X Axis Y Axis 20 20 20 20 20 20 Interval = 20

5. Country Gold Medals SilverMedals China3217 Germany1316 Russia2727 United States 3639 We will use this data to make a double-bar graph.

6. 0 10 20 30 40 50 ChinaGermanyRussia United States Number of Medals Countries Gold Silver