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AP Stats Review Flashcards

Terms : Hide Images
5841061188MeanThe mathematical average0
5841062588Standard DeviationVariance about the mean1
5841067290Box and Whiskers5 number summary2
5841081059Q2Median3
5841083100Q125%ile4
5841085154Q0Minimum5
5841087225Q4Maximum6
5841090653Q375%ile7
5841095480Interquartile RangeMiddle 50%8
5841100554z-scoreStandard score9
5841112259PercentileA location in a distribution10
5841124523Add the counts in the frequency columnCumulative Frequency11
5841133105Positive SkewThe tail points to the right12
5841136024Negative SkewThe tail points to the left13
58411417623 SD from the mean99% of population14
58411429602 SD from the mean95% of population15
58411449941 SD from the mean68% of population16
5841157250Direct RelationshipAs one variable increases, so does the other variable17
5841162094Indirect RelationshipAs one variable increases, the other decreases18
5841169973MeaningfulnessThe amount of variance in one variable accounted for by the other variable19
5841176145The picture depicts a correlation of approximately.220
5841190277Yp = aX + b, where a =Slope21
5841192939Yp = aX + b, where b =The y-intercept22
5841198554Yp = aX + b, where X =The score23
5841204846The picture depicts a correlation of approximately.924
5841215702The picture depicts a correlation of approximately-.925
5841226185SamplePart of the population26
5841234401Convenience SampleIndividuals that are easy to reach27
5841240035Voluntary Response SamplePeople who choose themselves28
5841244392Simple Random SampleIndividuals from a population who have an equal chance to be sampled29
5841253603Stratified Random SampleFirst classify population and then assign groups with equal chance30
5841259102Cluster SamplePut population into groups and then sample with SRS31
5841280717Double-BlindNeither subjects or researchers know who has received what treatment32
5841294946ProbabilityChance process between 0 and 133
5841320205Discrete Random VariableIf all possible outcomes can be listed34
5841330410Continuos Random VariableArise from measuring something35

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