| A | B |
| bar graph | A graph using vertical or horizontal bars to display numerical information |
| median | The middle value in a data set when the values are listed from lowest to highest |
| pictograph | A graph using symbols to represent data |
| line graph | A graph in which a line shows changes in data, often over time |
| circle graph | A round graph that uses different sized wedges to show how portions of a set of data compare with the whole set |
| mean | The sum of the values in a data set divided by the number of values |
| scatterplot | A graph showing paired data values |
| trend | A relationship between two sets of data that shows up as a pattern in a scatterplot |
| mode | One of the values appearing most often in a data set |
| tally marks | Marks used to organize a large set of data |
| frequency chart | A table listing each value that appears in a data set followed by the number of times it appears |
| line plot | A plot that shows the shape of a data set by stacking x's above each value on a number line |
| scale | The "ruler" that measures the heights of the bars in a bar graph |
| interval | One of the equal-sized divisions on a bar graph scale |
| outlier | A number very different from the other numbers in a data set |
| horizontal axis | The horizontal line of the two lines on which a graph is built |
| vertical axis | The vertical line of the two lines on which a graph is built |
| range | The difference between the highest and lowest values in a data set |
| stem-and-leaf diagram | A graph showing the shape of a data set by breaking each value into a "stem" part and a "leaf" part |