STATISTICS

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Anonymous
ID:
5782
Filename:
STATISTICS
Updated:
2010-01-31 21:09:34
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STATS CH 1
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STATISTICS CH 1
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  1. The study of how to collect, organize, analyze and interpret numerical info. from data.
    Statistics
  2. People or objects included in a study.
    Individuals
  3. A characteristic of the individual to be measure or observed.
    Variable
  4. Posses a value or numerical measurement for which operations such as addition or averaging make sense, such as height, weight, age, income...
    Quantitative Variable
  5. Posses a non-numerical value such as gender, nationality, color, name...
    Qualitative (Categorical) Variable
  6. the set of all measurements or observations under consideration.
    Population Data
  7. A (representative) subset of the population
    Sample Data
  8. The lowest level of data measurement - Ex. - Name; color; social security number; telephone number; political party.
    Nominal
  9. The second lowest level of data measurement - Ex. - class (Freshmen, sophomore...); military rank, conditions (poor, good, excellent.)...
    Ordinal
  10. The second highest level of data measurement - Ex. - temperature (oC or oF); calendar date; clock time.
    Interval
  11. The highest level of data measurement - Ex. - Kelvin temperature; height, weight; income time; - Starts at 0 - nothing below it.
    Ratio
  12. Involves methods of orgainizing, picturing and summarizing info from samples or populations.
    Descriptive Statistics
  13. Involves methods of using info from a sample to draw conclusions regarding the population
    Inferential Statistics

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