Terms : Hide Images
| 5794272945 | Individuals | the objects described by a set of data, may be people, animals or things | 0 | |
| 5794274294 | variable | any characteristic of an individual | 1 | |
| 5794274650 | categorical variable | places an individual into one of several groups or categories | 2 | |
| 5794275077 | quantitative variable | take numerical values for which it makes sense to find an average | 3 | |
| 5794275470 | distribution of a variable | tells us what values the variable takes and how often it takes these values | 4 | |
| 5794279365 | pie charts | displays categorical data, best used when you want to emphasize each category's relation to the whole | 5 | |
| 5794280536 | bar graphs | displays categorical data, easiest to create and read | 6 | |
| 5794284669 | two-way table | organizes data about two categorical variables measured for the same set of individuals, aka contingency table | 7 | |
| 5794292378 | marginal distribution | in a two-way table, the distribution of either variable alone; the counts or percentages are the totals found in the margins (last row or column) of the table | 8 | |
| 5794296268 | conditional distribution | Describes the values of one variable among individuals who have a specific value of another variable. | 9 | |
| 5794298848 | side-by-side bar graph | displays conditional distributions, sometimes a segmented bar graph is used | 10 | |
| 5794304956 | association | Relationship between or among variables. | 11 | |
| 5794308795 | dot plot | simplest display of quantitative data plotting dots along a horizontal axis, best used for small data sets | 12 | |
| 5794318886 | SOCS | describe a distribution using shape, outlier, center, spread | 13 | |
| 5794320823 | Symmetric | the shape of a distribution if the right and left sides are approximately mirror images of each other | 14 | |
| 5794323368 | Skewed | the shape of a distribution if the right (or left) side of the graph is much longer than the other side | 15 | |
| 5794330175 | Unimodal | describes the center of a distribution with a single peak | 16 | |
| 5794331571 | Bimodal | describes the center of a distribution with two clear peaks | 17 | |
| 5794337794 | stemplot | display of quantitative data giving a quick picture of the shape of distribution while including the actual numerical values in the graph, best used for small data sets | 18 | |
| 5794342472 | histogram | display of quantitative data using equal width bars to represent "classes" of data and the frequency (count) or relative frequency (percent) of individuals in each class, not be confused with a bar graph | 19 | |
| 5794363501 | mean | arithmetic average, not resistant to outliers | 20 | |
| 5794365513 | x-bar | sample mean | 21 | |
| 5794366043 | mu | population mean | 22 | |
| 5794367049 | median | midpoint of the distribution when data values are in order of size, from smallest to largest, resistant to outliers | 23 | |
| 5794373158 | range | describes the spread, largest value in data set minus the smallest value in data set, not resistant to outliers | 24 | |
| 5794374368 | IQR | describes the spread, quartile 3 minus quartile 1, resistant to outliers | 25 | |
| 5794377470 | Outlier rule | if an observation is more than 1.5xIQR above Q3 or less than 1.5xIQR below Q1 | 26 | |
| 5794379574 | Five number summary | smallest observation, Q1, median,Q3, largest observation | 27 | |
| 5794380966 | boxplot | distribution of a five number summary | 28 | |
| 5794383023 | standard deviation | describes the spread, measures the typical distance of the values in a distribution from the mean, not resistant to outliers | 29 | |
| 5794388817 | variance | describes the spread, standard deviation squared, not resistant to outliers | 30 | |
| 5794399491 | mean and standard deviations | best used when describing roughly symmetric distributions without outliers, most useful for Normal distributions | 31 | |
| 5794401117 | median and IQR | best used when describing skewed distributions | 32 |
