| A | B |
|---|
| Individual | objects described by set of data |
| Variable | the characteristics of individual |
| Categorical / Qualatative | separates individuals into categories |
| Quantitative Variable | numerical values |
| To describe distribution is to | describe Shape, Center and Spread |
| Outlier | any data that falls outside the overall pattern (to prove, Q3+(1.5*IQR) < x or x < Q1-(1.5*IQR)) |
| Symmetric | if the right and left are mirror image of each other |
| Skewed to the right | tail to the right |
| Ogive | a Relative cumulative frequency graph |
| IQR | Q3 - Q1 |
| Five Number Summary | Minimum, Q1, M, Q3, Maximum |
| Boxplot | Label, minimum, Q1, Q3, M, MAX |
| Modified Boxplot | a boxplot that excludes outliers |
| Variance | (standard deviation) power 2 |
| Properties of Standard Deviation | 1) measures spread about the mean when mean is chosen as center, 2) s = 0 when no spread, 3) s is not resistant |
| Median and IQR are | resistant |
| mean, SD, variance, range are not | resistant |
