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AP Statistics Chapter 1 Flashcards

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7297097244IndividualsThe objects described by a set of data. They may be people, animals, or things.0
7297100503Variableany characteristic of an individual1
7297104144Categorical Variableplaces an individual into one of several groups or categories2
7297106578Quantitative Variabletakes on numerical values that make sense to average3
7297109998Distributiontells us what values a variable takes on and how often it takes them4
7297116847Marginal DistributionThe distribution of one of the categorical variables in a two-way table of counts is the distribution of values of that variable among all individuals described by the table.5
7297140840Conditional DistributionThe distribution of the row variable for each value of the column variable or the column variable for each value of the row variable.6
7297150451side-by-side bar graphGraph used to display conditional distributions7
7297153315Dotplotgraph used to display small quantitative data sets with a small range8
7297159681symmetricright and left sides of graphs are approximately mirror images of each other9
7316459312skewed to the rightright side of the graph is much longer than the left side10
7316463037skewed to the leftleft side of the graph is much longer than the right side11
7316465349unimodalone distinct peak in the graph12
7316468477bimodaltwo distinct peaks in the graph13
7316471309multimodalmore than two distinct peaks in the graph14
7316474806stemplotsimple graph for small data sets that retains the actual data values15
7316484258histogramquantitative graph that organizes the data into equal sized blocks16
7316492849mean (x-bar)Tells us what the amount would be if the total was shared evenly amongst the data values.17
7316498143median (M)The middle number of an ordered list of data.18
7316507828ResistantA measure that is not affected by outliers19
7316515744Q1Median of the lower half of data20
7316517190Q3Median of the upper half of data21
7316518706Minimumlowest data value22
7316520225Maximumhighest data value23
7316521556IQRRange of the middle 50% of data24
7316524195Standard DeviationAverage distance from the observations and their mean25

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