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statistics
vocab
| Question | Answer |
|---|---|
| statistics | science of collecting tabulating organizing analyzing and predicting and drawing |
| descriptive | collection tabulating organization presenting |
| inferential | prediction drawing conclusion |
| quantitative discrete | 1,2,3,4.... |
| quantitative continuos | age hight weight faction numbers |
| qualitative | transcription of conversation, type of car gender race |
| variable | charechteristics that can assume different values |
| random variables | variable that are determined by chance |
| data | values the variables assume |
| nominal | ex gender,race,country, it has no order |
| ordinal | you can put in order non numerical grades judging ppl 1st 2nd 3rd... |
| interval | theres no true 0 so ratios are meaningless ex: sat scores temperture, IQ score |
| ratio | can be ranked diffrence are meaningful and theres a true 0 |
| systmatic sampeling | every nth person |