| A | B |
|---|
| Stem and Leaf Plot | a method of organizing data in order to make comparisions; the ones digits appear horizontally as leaves, and the tens digits and greater appear as stems |
| Bar graph | a graph that uses seperate bars (rectangles) of different heights (lengths) to show and compare data |
| Line graph | a graph in which line segments are used to show changes over time |
| historogram | a bar graph that shows the number of times data occur within certian ranges or intervals |
| circle graph | a graph using a circle that is divided into pie-shaped sections showing percents or parts or the whole |
| prediction | an estimate made by looking at a trend over time and then extending that trend to describe a future event |
| mean | the average of a group of numbers |
| median | the middle number or the average of the two middle numbers in an ordered set of data |
| mode | the number or numbers that occur most often in a collection of data; there can be more or none at all |
| range | the difference between the greatest and least numbers in a set of numbers |
| box and wisker graph | a graph that shows how far apart and how evenly data are distributed |
| lower extreme | the least number in a set of data |
| upper extreme | the greatest number in a set of data |
| lower quartile | the median of the lower half of a set of data |
| upper quartile | the median of the upper half of a set of data |
| biased sample | a sample that is not a represenative or the population |
| data | a set of information |
