Term
| largest collection of entities for which we have an interest at a particular time: |
|
Definition
|
|
Term
| a subset or fraction of the population of interest: |
|
Definition
|
|
Term
| descriptive measure computed from the data in a population: (usually represented by a greek letter) |
|
Definition
|
|
Term
| a descriptive measure computed from the data in a sample: |
|
Definition
|
|
Term
| the raw material of stats; the recording of measurements taken on characteristics: |
|
Definition
|
|
Term
| stats: purpose is to organize a summarize data in samples and populations: |
|
Definition
| descriptive stats (mean, median, mode) |
|
|
Term
| stats: puepose is to make educated guesses about the pop based on random samples from the pop: |
|
Definition
|
|
Term
| characteristic that can take on different values: |
|
Definition
|
|
Term
| types of variables: measurement that stays the same from observation to observation: |
|
Definition
|
|
Term
| a variable that is characterized by values that cannot be predicted in advance due to chance factors: |
|
Definition
|
|
Term
| variables with gaps or interuptions in teh values that can be assumed |
|
Definition
|
|
Term
| variables that don't posses gaps or interuptions; infinite # of values that the variable can assume: |
|
Definition
|
|
Term
| variables that are chategorized: |
|
Definition
|
|
Term
| categorical variable that vcan take only two values: |
|
Definition
|
|
Term
| naming observations of classifying them into various categories: |
|
Definition
|
|
Term
| observations that are different btwn categories but can be ranked according to some criteria: |
|
Definition
|
|
Term
| possible to order the measurements, but also the distance btwn any two measurements is KNOWN: no true zero |
|
Definition
| interval scale measurement: quantitative |
|
|
Term
| equality of ratios as well as equality of intervals may be determined; with a zero point |
|
Definition
|
|
Term
| chart used for nominal or ordinal data: |
|
Definition
|
|
Term
| chart used for ratio data: |
|
Definition
|
|
Term
| cahrt that can plot two continuous variables, and relationship btwn 2 variables is shown. |
|
Definition
|
|
