Statistics

Joanmery  Almodovar
Mind Map by Joanmery Almodovar, updated more than 1 year ago
Joanmery  Almodovar
Created by Joanmery Almodovar over 6 years ago
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Chapter 1

Resource summary

Statistics
  1. The methods that help transform data into useful information for decision makers.
    1. Variable Types:
      1. Categorical Variables (Qualitative variables)
        1. Have values that can only be placed into categories such as yes and no.
          1. Measurement Scales
            1. Nominal Scale: classifies data into distinct categories in which no ranking is implied.
              1. Ordinal Scale: classifies values into distinct categories in which ranking is implied.
            2. Numerical Variables (Quantitative variables)
              1. Have values that represent quantities.
                1. Discrete variables: have numerical values that arise from a counting process.
                  1. Continuous variables: produce numerical responses that arise from a measuring process.
                  2. Measurement Scales
                    1. Interval Scale: is an ordered scale in which the difference between measurements is a meaningful quantity but does not involve a true zero point.
                      1. Ratio Scale: is an ordered scale in which the difference between the measurements involves a true zero point.
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