AP Statistics - Lesson 1.2 Flashcards
from The Practice of Statistics, 4th edition, by Starnes, Yates, and Moore
Terms : Hide Images [1]
| 555852884 | dotplot | individual values shown as a dot above its location on a number line - shows distribution of a quantitative variable | |
| 555852887 | overall pattern | shape, center, spread | |
| 555852888 | outlier | individual value that falls outside the overall pattern | |
| 555852892 | describing a distribution of quantitative data | S- shape O- outliers C- center S- spread | |
| 555870117 | shape | skewed/symmetrical and mode | |
| 555852889 | mode; modes | most frequent; major peaks | |
| 555870118 | center | median or mean | |
| 555852890 | mean | average | |
| 555901642 | median | the middle value of a data set when numbers are arranged from least to greatest | |
| 555901643 | spread | how much variability in the data, range | |
| 555901644 | range | highest value minus smallest value | |
| 555852894 | skewed right | right side of the graph with larger values is longer than the left | |
| 555901645 | skewed left | left side of the graph is much longer than the right side | |
| 555852893 | symmetric | the right and left sides of the graph are almost mirror images | |
| 555852895 | unimodal | single peak | |
| 555852896 | bimodal | two clear peaks | |
| 555852897 | multimodal | multiple peaks | |
| 555852885 | stemplot | separate each observation into a stem and a one-digit leaf; show distribution of a quantitative variable | |
| 555901646 | split stems | stem repeated twice: first line leaf values of 0-4, second line leaf values of 5-9; ex: 0 | 0 1 2 3 4 0 | 5 6 7 8 9 | |
| 555901647 | back-to-back stemplot | compare two variables, share same stem, work out from center on both sides | |
| 555852886 | histogram | plot the counts (frequencies) or percents (relative frequencies) of values in equal-width classes; shows distribution of a quantitative variable |