'Numerical variables' diaporamas de présentation

INTERNATIONAL BUSINESS INFORMATION AND SUPPORT SYSTEM

INTERNATIONAL BUSINESS INFORMATION AND SUPPORT SYSTEM. SOME DEFINITIONS. Data are facts or recorded measures of certain phenomena (things or events ) .

976 views • 80 slides

The Use of Dummy Variables

The Use of Dummy Variables. In the examples so far the independent variables are continuous numerical variables. Suppose that some of the independent variables are categorical.

1.43k views • 78 slides

Advanced Study Design

937 views • 75 slides

Describing data with graphics and numbers

Describing data with graphics and numbers. Types of Data. Categorical Variables also known as class variables, nominal variables Quantitative Variables aka numerical nariables either continuous or discrete. Graphing categorical variables.

886 views • 68 slides

Neural Network

Neural networks offer modelling procedures for nonlinear data, which enables you to discover more complex relationships in your data. You can thus develop more accurate and effective predictive models.

3.36k views • 61 slides

Imputation in the 2011 Census

719 views • 58 slides

An Introduction into Stata I

454 views • 40 slides

Regression revisited

480 views • 35 slides

Splash Screen

370 views • 32 slides

Statistical Methods in Computer Science

Hypothesis Testing III: Categorical dependence and Ido Dagan. Statistical Methods in Computer Science. Testing Categorical Data. Single-factor, with categorical dependent variable Determine effect of independent variable values (nominal/ categorical too) on the dependent variable

466 views • 29 slides

Qualitative Research

Qualitative Research. Case Study 1 IS 2008-9. How to Create an Immersive Environment for Primary Literacy. Production of a Demonstrator and presented to teachers. Discussion. Voice recording made.

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Splash Screen

271 views • 22 slides

Chapter 3 Numerical Descriptive Measures

Chapter 3 Numerical Descriptive Measures. Contents. Central Tendency: the extent to which all of the data values group around a central value. Variation: the amount of dispersion or scattering of values away from a central point

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Getting Started

Getting Started. Some stories to get us started

250 views • 19 slides

Relationship between Two Numerical Variables

Relationship between Two Numerical Variables. By Farrokh Alemi, Ph.D. Relationships. Investigators are often interested in relationship between variables. Anecdotal Data. Multiple observations needed. Anecdotal Data. I have smoked all my life and I do not have cancer. Relationships.

271 views • 17 slides

Exploring Relationships Between Numerical Variables

216 views • 13 slides

Types of Variables

Types of Variables. Objective: Students should be able to identify the different types of variables, and know the characteristics of each type. Types of Variables. Categorical (data that are counted) Nominal Ordinal Quantitative or Numerical (data that are measured) Interval Ratio.

795 views • 13 slides

Describing Numerical Variables

Describing Numerical Variables. Examining each numerical variable in your analysis. Numerical Variables. Variables measured with meaningful numerical values. Ratio True zero (ex., weight, height, age) Interval

440 views • 12 slides

Theme 2 Types of Data

Theme 2 Types of Data. Overview. Variables can be anything that vary This lecture considers: Types of data Different scales of measurement The different functions of statistics The need to understand the characteristics of each of your variables is emphasised. Types of Data.

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Exploring Relationships Between Numerical Variables

224 views • 10 slides