Statistics Cheat Sheet - Blast Analytics

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Statistics Cheat SheetBasic Statistics Definitions: Statistics Practice or science of collecting and analyzing numerical dataData Values collected by direct or indirect observationPopulation Complete set of all observations in existenceSample Slice of population meant to represent, as accurately as possible, that populationMeasure Measurement of population/sample, an example would be some score ( an observation)Hypothesis Educated guess about what s going onSkew Not symmetrical, crooked or unevenImpute To fill in missing valuesType I Error (false positive) In hypothesis testing, when you incorrectly reject Null HypothesisType II Error (false negative)

Statistics Cheat Sheet Basic Statistics Definitions: Statistics – Practice or science of collecting and analyzing numerical data Data – Values collected by direct or indirect observation Population – Complete set of all observations in existence Sample – Slice of population meant to represent, as accurately as possible, that population

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