| A | B |
|---|
| bar graph | vertical or horizontal bars to display numerical information |
| pictograph | symbols to represent data |
| line graph | shows how data changes over time |
| circle graph | shows how portions of a set of data compare with the whole set |
| scatterplot | a graph that shows paired data |
| trend | a relationship between two sets of data that shows a pattern |
| tally marks | slash marks used to organize a large set of data |
| frequency chart | helps to list data quickly |
| scale | the ruler that measures the heights of the bars |
| intervals | equal divisions marked on a scale |
| horizontal axis | "left and right" axis |
| vertical axis | "up and down" axis |
| range | the difference between the highest value and the lowest value |
| median | the middle number when the data are listed from lowest to highest |
| mode | the item that occurs most often |
| mean | the sum of the items divided by the number of items (average) |
