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Statistics Lec 2 - Statistics Chpt 2 Section 2.1 Variables...

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Statistics Chpt. 2 Section 2.1 Variables and Data Variables characteristic that varies from one person or thing to another Qualitative variable numerically valued variable (categorial) Examples eye color, gender, blood type, and zip code Quantitative variable numerically valued variable Two Types of Quantitative: 1. Discrete possible values can be listed; only finite # of possibilities a. Counts b. Ex. Number of siblings 2. Continuous possible values from some interval of numbers a. Measurement b. Ex. Height and Age 2.2 Data values of a variable (not always numeric value) Different types of data Qualitative, Quantitative, Discrete, and Continious Observation one single measurement or individual piece of data (one value) Data Set collection of values for all variables of interest Organizing Qualitative Data
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