Andrea Leyden
Mind Map by , created more than 1 year ago

What you need to revise for the GCSE statistics exam - some of the nodes have little notes attached with tips and reminders

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Felix Ulrich-Oltean
Created by Felix Ulrich-Oltean over 10 years ago
Andrea Leyden
Copied by Andrea Leyden over 10 years ago
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StratifiedRandom starting place,every nth person where nis pop / sampleSystematicEvery item has anequal chanceUsing random number tablesRandomQuotaKey words: samplingframe, sampling unit,census, populationSampling methodsCapture / recapture isjust two equiv fractionsSuitable questions(open/closed)Pilot surveysSurveysData types3. Collecting DataHistogramsSkewOutliersCF / boxplotsChoroplethComparative pie chartsStem and leaf digramsAxesLabelsThickness / colour3D effectMisleading graphs4. Graphs and ChartsStandard deviationMeanMedian/Quantiles by Interpolation1. Processing DataTied ranksInterpreting the resultSpearman's RankEquation of the line(gradient / intercept)Make predictionsExtrapolationLine of best fit2. CorrelationChain-basedBase yearWeightedIndex numbersMoving averagesTrend linePredict future valueMean seasonalvariation / seasonaleffectSeasonal variationsTime series table and graph5. TimeVenn diagramsTree diagrams6. ProbabilityFeatures, percentagesQA charts, warning, action limitsNormalBinomialDiscrete uniform7. DistributionsGCSE StatisticsDouble click this nodeto edit the textClick and drag this buttonto create a new node