Author: Vincent Granville

This resource is part of a series on specific topics related to data science: regression, clustering, neural networks, deep learning, decision trees, ensembles, correlation, Python, R, Tensorflow, SVM, data reduction, feature selection, experimental design, cross-validation, model fitting, and many more. To keep receiving these articles, sign up on DSC.

**29 Statistical Concepts Explained in Simple English**

- Negative Binomial Experiment / Distribution: Definition, Examples
- Nested Model, ANOVA and Factors: Simple Definitions and Examples
- Nominal Ordinal Interval Ratio: Examples
- Nominal Variable: Definition and Examples
- Differential & Non-Differential Misclassification
- Nonlinear Regression: Simple Definition & Examples
- Non-Probability Sampling: Definition, Types
- Non Response Bias: Definition, Examples
- Normalized Data / Normalization
- Normal Probability Plot: Definition, Examples
- Normal Probability Practice Problems and Answers
- Nuisance Variable & Nuisance Parameter: Definition, Examples
- Number Needed to Harm NNH: Definition
- Observation in Statistics: Simple Definition & Examples
- Observer Bias / Research or Experimenter Bias: Definition, Examples, How to Avoid
- Odds Ratio Calculation and Interpretation
- Ogive Graph / Cumulative Frequency Polygon in Easy Steps
- Omega Squared: Definition
- One Sample T Test: How to Run It, Step by Step
- One Sample Z Test: How to Run One
- Open Ended Distribution: Definition and Examples
- Order Effects: Definition, Examples and Solutions
- Order of Integration (Time Series): Simple Definition / Overview
- Order Statistics: Simple Definition, Examples
- Ordinal Numbers, Variables and Data: Definition and Examples
- Pairwise Independent, Mutually Independent: Definition, Example
- Parallel Design / Parallel Group Study
- Parallel Forms Reliability (Equivalent Forms)
- Non Parametric Data and Tests (Distribution Free Tests)

Previous editions, in alphabetical order, can be accessed here:

Part 1 | Part 2 | Part 3 | Part 4 | Part 5 | Part 6* |* Part 7* |* Part 8 | Part 9 | Part 10 | Part 11

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