SlideShare ist ein Scribd-Unternehmen logo
1 von 12
Érica Siqueira
 Quando seus valores são expressos por
atributos, ou qualidade
 Exemplos: cor da pele, sexo
 Não se pode / deve fazer operações
aritméticas pois não produz resultados
significativos
 Podem ser Nominais ou Ordinais
 Uma distribuição de frequência é um sumário
de dados que mostra o número (frequência)
de itens em cada uma das diversas classes
não sobrepostas
 Suponha que a tabela abaixo represente a
compra, em um determinado mercado, de 40
refrigerantes.
Coca-Cola Coca-Cola Fanta
Coca-Cola Sprite Coca Zero
Sprite Fanta Coca-Cola
Fanta Coca Zero Fanta
Coca Zero Coca-Cola Coca Zero
Coca-Cola Fanta Coca-Cola
Sprite Coca Zero Sprite
Fanta Coca-Cola Fanta
Coca Zero Sprite Coca Zero
Fanta Fanta Coca-Cola
Coca Zero Coca Zero Coca-Cola
Coca-Cola Sprite Sprite
Sprite Fanta Fanta
Coca-Cola Fanta Coca-Cola
Sprite Coca Zero Sprite
Refrigerante
Frequência
Absoluta
Coca-Cola 13
Sprite 10
Fanta 12
Coca Zero 10
 Para desenvolver uma distribuição de
frequência de dados contamos o número de
vezes que cada valor aparece.
 No caso dos refrigerantes, contamos quantas
vezes cada tipo de refrigerante aparece.
 Através da distribuição de frequência das
compras de refrigerantes podemos ver que a
Coca Cola é a mais vendida
 É a razão entre a frequência absoluta e a
frequência total.
 Existe pois muitas vezes estamos
interessados na proporção ou porcentagens
 Frequência Relativa =
Refrigerante
Frequência
Absoluta
Frequência
Relativa
Frequencia
Percentual
Coca-Cola 13 0,29 29
Sprite 10 0,22 22
Fanta 12 0,27 27
Coca Zero 10 0,22 22
Total 45 1 100
 Serve para descrever dados qualitativos que
foram sintetizados em uma distribuição de
frequência.
 Em um eixo (geralmente eixo da horizontal)
especificamos os rótulos (classes ou
categorias).
 No outro eixo especificamos a escala de
frequência
0
2
4
6
8
10
12
14
Coca-Cola Sprite Fanta Coca Zero
Frequência Absoluta
Frequência Absoluta
 Serve para descrever as frequências relativas
ou percentuais de uma distribuição de
frequência.
 Lembrar que o círculo tem 360º
 Para obter cada setor multiplica-se a
frequência relativa por 360
0.29
0.22
0.27
0.22
Frequência Relativa
Coca-Cola
Sprite
Fanta
Coca Zero

Weitere ähnliche Inhalte

Empfohlen

Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)contently
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsKurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summarySpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best PracticesVit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project managementMindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...RachelPearson36
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at WorkGetSmarter
 

Empfohlen (20)

Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
 

Estatistica aula 3

  • 2.  Quando seus valores são expressos por atributos, ou qualidade  Exemplos: cor da pele, sexo  Não se pode / deve fazer operações aritméticas pois não produz resultados significativos  Podem ser Nominais ou Ordinais
  • 3.  Uma distribuição de frequência é um sumário de dados que mostra o número (frequência) de itens em cada uma das diversas classes não sobrepostas
  • 4.  Suponha que a tabela abaixo represente a compra, em um determinado mercado, de 40 refrigerantes. Coca-Cola Coca-Cola Fanta Coca-Cola Sprite Coca Zero Sprite Fanta Coca-Cola Fanta Coca Zero Fanta Coca Zero Coca-Cola Coca Zero Coca-Cola Fanta Coca-Cola Sprite Coca Zero Sprite Fanta Coca-Cola Fanta Coca Zero Sprite Coca Zero Fanta Fanta Coca-Cola Coca Zero Coca Zero Coca-Cola Coca-Cola Sprite Sprite Sprite Fanta Fanta Coca-Cola Fanta Coca-Cola Sprite Coca Zero Sprite
  • 6.  Para desenvolver uma distribuição de frequência de dados contamos o número de vezes que cada valor aparece.  No caso dos refrigerantes, contamos quantas vezes cada tipo de refrigerante aparece.  Através da distribuição de frequência das compras de refrigerantes podemos ver que a Coca Cola é a mais vendida
  • 7.  É a razão entre a frequência absoluta e a frequência total.  Existe pois muitas vezes estamos interessados na proporção ou porcentagens  Frequência Relativa =
  • 8. Refrigerante Frequência Absoluta Frequência Relativa Frequencia Percentual Coca-Cola 13 0,29 29 Sprite 10 0,22 22 Fanta 12 0,27 27 Coca Zero 10 0,22 22 Total 45 1 100
  • 9.  Serve para descrever dados qualitativos que foram sintetizados em uma distribuição de frequência.  Em um eixo (geralmente eixo da horizontal) especificamos os rótulos (classes ou categorias).  No outro eixo especificamos a escala de frequência
  • 10. 0 2 4 6 8 10 12 14 Coca-Cola Sprite Fanta Coca Zero Frequência Absoluta Frequência Absoluta
  • 11.  Serve para descrever as frequências relativas ou percentuais de uma distribuição de frequência.  Lembrar que o círculo tem 360º  Para obter cada setor multiplica-se a frequência relativa por 360