# Statistics

Mind Map by Joanmery Almodovar, updated more than 1 year ago
 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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