Introduction: Think statistically

Part 1: The Importance of Data Collection
Chapter 1: Deciding the President Through Opinion Polls: The Grammar of Data Collection
Chapter 2: Who Listens to EBS College Scholastic Ability Test Lectures? - Operational Definition
Chapter 3: Why Did Lee Myung-bak and Park Geun-hye Conflict Over Survey Questions? - Measurement

Part 2: Insights into Diversity
Chapter 1: The Age of Average is Coming
Chapter 2: The Paradox of Apartment Prices: Segmentation

Part 3 Comparison and Relationship
Chapter 1: People Who Have Good Dreams Win the Lottery? - Comparison
Chapter 2: Analyzing Complex and Mysterious Causal Relationships
Chapter 3: Calculating with Numbers: Quantification

Part 4: Prediction and Judgment
Chapter 1: Lottery Tickets Can Increase Your Chances of Winning - Probability
Chapter 2: The Logic of Statistical Hypothesis Testing Through DNA Testing
Chapter 3: If you know baseball, beginner odds are no problem.

Article: The Age of Statistics: Seeing the World Through a Statistical Perspective

Upgrade your statistical thinking skills, which are just as important as reading and writing!

We see and live in the world through numbers every day.
We observe economic fluctuations through the stock index, consider the presidential election trends through the approval ratings of presidential candidates, and judge the economy through the consumer price index.
Numbers are also a very useful tool for communicating and sharing information with people.
Is there any indicator as easily understood and persuasive as numbers? But how much do we really know about them? Do we simply accept the figures we see on TV or in the newspapers, or do we understand the reasons behind them or the intentions of those who use them? Only by understanding the underlying meaning of numbers can we avoid being deceived and master them.
This book is for those who are statisticians who get confused and go blank just by looking at numbers and graphs and don't know how to interpret them.
Data and numbers can be useless, or they can be excellent tools for prediction and judgment, depending on your statistical thinking skills.
In a world where information is overflowing and all phenomena in the world are expressed in numbers, the ability to collect and interpret information and understand and analyze statistical data is the measure of knowledge competitiveness.

- A response rate of 13.7%! ― Can we really trust these poll results, and will they align with the upcoming presidential election results?
- 2007 Grand National Party primary.
Candidates Lee Myung-bak and Park Geun-hye clashed sharply over the questions in the opinion poll.
What is the reason?
- 23 people won first prize in the 21st Lotto draw! - The odds of winning first prize are 1/8,145,060, so why did so many people win?
Have you ever bought a box of apples only to find the apples on the top and felt cheated? Statistics are deceptive.
Will you be naive and trustworthy, or will you rule the numbers?
- The Ministry of Education said that 68% of high school students and members of the National Assembly said that 11.8% of high school students are watching EBS's college entrance exam lectures.
Whose words are true?
- 17 airline miles are given for every 1,000 won spent on mobile phone usage.
But why can't I receive it?
- Apartment prices nationwide fell 24.7% in three months? You won't find such apartments anywhere.
What is the truth about real estate prices?
- If you have a good dream, you buy a lottery ticket, and if you have a good dream, you win the lottery? This exposes a flaw in conventional statistical logic.
What relieved nationally recognized pitcher Sun Dong-yeol's shoulder pain? Was it medication, therapy, or good food? We analyze the complex causal relationships.
What are the optimal conditions for preserving the freshness of fish? Does statistics provide the skills for prediction and optimization? Is there a way to increase the odds of winning the lottery?
- The method of determining parents through DNA genetic testing has the logic of statistical hypothesis testing hidden within it.
Why are statistics so widely used in baseball, among all sports? If you know baseball well, you can master basic probability.