# Intro Ch 1

 The flashcards below were created by user nemothebest on FreezingBlue Flashcards. Individuals are the objects described by a set of data. Individuals may be people, but they may also be animals or things Variable is any characteristic of an individual. It can take different values for difference individuals Categoral Variable places an individual into one of several groups or categories Quantitative variable takes numerical values for which arithmetic operations such as adding and averaging make sense distribution of a variable tells us what values the variable takes and how often it takes these values G.S.O.C.S gap, shape, outliers, centre, spread Histogram displays distribution of one quantitative variablebar widths must be equal do not pick too many or too few intervals 4/5 Percentile the pth percentile of a distribution is the value such that 'p' percent of the observations fall "at or below" it. Ex.) if you receive a standardized test in the 70th percentile that 70%of the people were the same or below you Ogive a relative cumulative frequency graph Authornemothebest ID282115 Card SetIntro Ch 1 DescriptionStats quiz on Friday sept 4 defs Updated2014-09-05T00:20:42Z Show Answers