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Chapter 13
Vocabulary from Ch. 13
| Term | Definition |
|---|---|
| Median | the middle value of a data set, or the mean of the two middle values of a data set |
| Lower Quartile | the median of the lower half of a data set |
| Upper Quartile | the median of the upper half of a data set |
| Box Plot | a type of graph that shows how data are distributed by using the least value, the lower quartile, the median, the upper quartile, and the greatest value |
| Mean Absolute Deviation | the mean of the distances of data values from the mean of the data set |
| Measure of Variability | a single value used to describe how spread out a set of data values are. Mean Absolute Deviation, Range, and Interquartile Range are examples. |
| Range | the difference between the greatest value and the least value in a data set |
| Interquartile Range | the difference between the upper quartile and the lower quartile of a data set |
| distribution | the overall shape of the data set |