| A | B |
|---|
| index number | measures the value of a variable relative to its value at a base period |
| fixed market basket price index | index number for the total cost of a fixed collection of goods and services |
| consumer price index | a fixed market basket price index for the colection of all the goods and services that consumers buy |
| Government statistical office | produces data needed for government policy and decisions by businesses and individuals |
| density curves | kind of graph used to describe the distributions of quantitative variables |
| Normal curves | special kind of density curve that describes the overall pattern of some sets of data. |
| 68-95-99.7 rule | 68% of data will be within 1 standard deviation of the mean, 95% will be within 2, and 99.7% will be within 3 standard deviations from the mean |
| standard scores | express observations in standard deviation units about the mean |
| standard score of the mean | 0 |
