# STATISTICS

 The study of how to collect, organize, analyze and interpret numerical info. from data. Statistics People or objects included in a study. Individuals A characteristic of the individual to be measure or observed. Variable Posses a value or numerical measurement for which operations such as addition or averaging make sense, such as height, weight, age, income... Quantitative Variable Posses a non-numerical value such as gender, nationality, color, name... Qualitative (Categorical) Variable the set of all measurements or observations under consideration. Population Data A (representative) subset of the population Sample Data The lowest level of data measurement - Ex. - Name; color; social security number; telephone number; political party. Nominal The second lowest level of data measurement - Ex. - class (Freshmen, sophomore...); military rank, conditions (poor, good, excellent.)... Ordinal The second highest level of data measurement - Ex. - temperature (oC or oF); calendar date; clock time. Interval The highest level of data measurement - Ex. - Kelvin temperature; height, weight; income time; - Starts at 0 - nothing below it. Ratio Involves methods of orgainizing, picturing and summarizing info from samples or populations. Descriptive Statistics Involves methods of using info from a sample to draw conclusions regarding the population Inferential Statistics AuthorAnonymous ID5782 Card SetSTATISTICS DescriptionSTATISTICS CH 1 Updated2010-02-01T02:09:34Z Show Answers