Os portugueses durante o euro com dados do multibanco
Posted by Armando Brito Mendes | Filed under estatística, visualização
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Um bom exemplo da utilização de dados para inferir comportamentos mas a parte das coincidências de valores era dispensável
Como conquistámos o Euro 2016 através do Multibanco (com infografia)
Publicado em: 20/07/2016 – 19:11:26
À hora da final entre Portugal e França, o país parou… e os levantamentos também! Conheça esta e outras curiosidades que marcaram o comportamento dos portugueses com a rede Multibanco à medida que os 23 magníficos conquistavam o Europeu 2016
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Tags: belo, big data, data mining, DW \ BI
why predicting a mass shooting is impossible
Posted by Armando Brito Mendes | Filed under estatística
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Excelente exemplo na previsão de acontecimentos raros
This cartoon explains why predicting a mass shooting is impossible
It’s simple math.
Updated by Brian Resnick and Javier Zarracina on June 15, 2016, 10:30 a.m. ET
In the wake of mass shootings, many people wonder how they could have been prevented. Were there warning signs that should have been heeded? Was the person mentally ill? Did he or she hold extremist views?
The sad truth is that the only personal factors that reliably correlate with mass shooters are being young and male. There are a lot of young, angsty men in this country. That makes prediction hard.
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Tags: data mining, previsão
Big Data to Fight Cancer
Posted by Armando Brito Mendes | Filed under estatística
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Exemplo de aplicação de técnicas de análise de dados a problemas de medicina
MD Anderson is sitting on 23 petabytes of data, including more than 2 billion diagnostic radiology images, generated by its massive IT infrastructure. But Chris Belmont, vice president and CIO, isn’t intimidated by the amount of data—he’s just scared of staring at it too long.
“Our biggest fear when we decided to move into Big Data was that, like many healthcare organizations, we’d have a two-year data ‘ingestion’ process where we’d keep thinking about that massive set of data, and connect all our systems big and small together, go get even more data from external sources, and then eventually offer our users an add-on tool and tell them to go at it,” Belmont says. “By the time we’d be done ingesting all that data, the time to change the game in terms of costs or population health would have already passed.”
Tags: análise de dados, big data, data mining, decisão médica
UK Data Service
Posted by Armando Brito Mendes | Filed under data sets, estatística
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Bom site com muitos data sets de grande dimensão. Assuntos relacionados com censos e inquéritos.
Explore the UK’s largest collection of social, economic and population data resources.
Data types
Tags: big data, data mining, inquéritos
national numeracy
Posted by Armando Brito Mendes | Filed under estatística, materiais para profissionais
Um site sobre literacia numérica no reino unido
What is
the issue?
Low levels of numeracy are a long-term problem for the UK.
1. Numeracy skills have got worse, not better
Proportion of working age adults in England with skills levels equivalent to GCSE “C” grade or above
2. High numeracy is connected to better…
3. The UK risks becoming less competitive internationally
Raynald’s SPSS Tools
Posted by Armando Brito Mendes | Filed under estatística, materiais para profissionais, software
Bons recursos sobre SPSS e ligação com R e Pyton
Raynald’s SPSS Tools
The collection of syntaxes, macros, scripts and hints for better solutions of data management and data analysis problems in IBM SPSS Statistics
Tags: análise de dados, decisão médica, Estat Descritiva, IBM SPSS Statistics, R-software, software estatístico
Straightforward Statistics Videos
Posted by Armando Brito Mendes | Filed under estatística, lições, materiais ensino, videos
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Montes de vídeos sobre todos os temas abordados em P&E
Video and Multimedia
Click on the following links. Please note these will open in a new window.
Descriptive Versus Inferential Statistics
https://www.youtube.com/watch?v=edEXEyvG4Wk
Illustrates the differential purposes served by descriptive and inferential techniques in conducting statistical analyses.
https://www.youtube.com/watch?v=L6hy1CY-OW4
Practical examples of descriptive and inferential statistics
https://www.youtube.com/watch?v=be9e-Q-jC-0
Simple Random Sampling, Convenience Sampling, Systematic Sampling, Cluster Sampling, Stratified Sampling
Types of Variables
https://www.youtube.com/watch?v=hZxnzfnt5v8
Describes the concepts of; a) unit of observation and b) variables and consequently the differences amongst the three major levels of measurement of variables, nominal, ordinal and interval/ratio.
Tags: análise de dados, Estat Descritiva
INTRODUCTORY STATISTICS book
Posted by Armando Brito Mendes | Filed under estatística, lições, materiais ensino
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Um webBook sobre estatística com exercícios e exemplos em SPSS
INTRODUCTORY STATISTICS:
CONCEPTS, MODELS, AND APPLICATIONS
3rd Web Edition
David W. Stockburger
Missouri State University
@Copyright 2013 by David W. Stockburger
Tags: Estat Descritiva, IBM SPSS Statistics, inferência
Earliest Known Uses of Words of Mathematics
Posted by Armando Brito Mendes | Filed under estatística, matemática, materiais ensino
um curioso site onde se registam os significados mais antigos para termos matemáticos
These pages attempt to show the first uses of various words used in mathematics. Research for these pages is ongoing, and a citation should not be assumed to be the earliest use unless it is indicated as such.
Mathematical Words: Origins and Sources by John Aldrich is an excellent article and companion to this web site.
Please see also Earliest Uses of Various Mathematical Symbols, Images of Mathematicians on Postage Stamps, and Ambiguously Defined Mathematical Terms at the High School Level.
These pages are maintained by Jeff Miller, a teacher at Gulf High School in New Port Richey, Florida. The principal contributors are John Aldrich, Julio González Cabillón, Carlos César de Araújo, and James A. Landau. Other contributors are Manoel de Campos Almeida, Antranig Basman, Dave Cohen, John Conway, Martin Davis, Karen Dee Michalowicz, Joanne M. Despres of Merriam-Webster Inc., Bill Dubuque, Mark Dunn, John G. Fauvel, Walter Felscher, Giovanni Ferraro, Tom Foregger, Michael N. Fried, John Harper, Antreas P. Hatzipolakis, Barnabas Hughes, Samuel S. Kutler, Franz Lemmermeyer, Avinoam Mann, Peter M. Neumann, Ken Pledger, Paul Pollack, Jim Propp, Aldo I. Ramirez, Lee Rudolph, Randy K. Schwartz, Max Urchs, Tom Walsh, William C. Waterhouse, and David Wilkins.
“Perhaps I may without immodesty lay claim to the appellation of Mathematical Adam, as I believe that I have given more names (passed into general circulation) of the creatures of mathematical reason than all the other mathematicians of the age combined.” —James Joseph Sylvester, Nature 37 (1888), p. 152.
Tags: definição
Research Methods Knowledge Base
Posted by Armando Brito Mendes | Filed under estatística, materiais ensino, materiais para profissionais
Um webBook pensado para investigadores sobre temas de estatística
What is the Research Methods Knowledge Base?
The Research Methods Knowledge Base is a comprehensive web-based textbook that addresses all of the topics in a typical introductory undergraduate or graduate course in social research methods. It covers the entire research process including: formulating research questions; sampling (probability and nonprobability); measurement (surveys, scaling, qualitative, unobtrusive); research design (experimental and quasi-experimental); data analysis; and, writing the research paper. It also addresses the major theoretical and philosophical underpinnings of research including: the idea of validity in research; reliability of measures; and ethics. The Knowledge Base was designed to be different from the many typical commercially-available research methods texts. It uses an informal, conversational style to engage both the newcomer and the more experienced student of research. It is a fully hyperlinked text that can be integrated easily into an existing course structure or used as a sourcebook for the experienced researcher who simply wants to browse.
- Home
- Table of Contents
- Navigating
- Foundations
- Sampling
- Measurement
- Design
- Analysis
- Write-Up
- Appendices
- Search
Tags: análise de dados, b-learning, Estat Descritiva, inferência
