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Stat_Module1

Intro Vocab

TermDefinition
Statistics Involve... (steps) 1.) Research Question --- 2.) Collecting Data --- 3.) Describing and Analyzing Data --- 4.) Forming Conclusions/Inferences
Numerical Data "Quantitative" - data you do with math
Qualitative Data "Categorical" - data you do with groups
Subjects Individuals in which we collect the information on
Variables features that we measure about the subjects
Statistical Method (steps) 1.) Design (how we obtain our data) --- 2.) Description (summarizing the data) --- 3.) Inference (making decisions or predictions)
Population overarching set of all individuals we study
Sample a subset of the population on which we father data and that we use to make inferences about a population
Parameter a measure summarizing the POPULATION
Statistic a measure summarizing the sample
Variation repeating the same process may yield different results
Sampling Variability variation between samples
Mean average (measure for QUANTITATIVE variables)
Proportion a percentage or fraction (measure for categorical variables)
Population Mean Parameter; "Mu"
Sample Mean Statistic; "X bar"
Population Proportion Parameter; "p"
Sample Proportion Statistic; "p hat"
Created by: gcaitlinm
Popular Math sets

 

 



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