Chapter 12: Data Handling
What you need to learn in this chapter
In this chapter, we will learn about the process of collecting, organizing, and representing data, as well as interpreting data representations. First, we will learn how to generate statistical questions and collect relevant data. We need to think about the questions we want to answer and gather data related to those questions.
Then, we will learn to classify data into categorical data or numerical data. Categorical data is data that can be categorized into different groups, for example the color of a car or the type of animal. Numerical data is data that can be measured or calculated, for example body weight or the number of people.
In addition, we will also learn how to build a frequency table. Frequency tables help us organize data and show how many times each value appears in the data. By using a frequency table, we can see patterns and trends in the data.
It is important to understand this topic because data handling is fundamental to statistical analysis. By learning how to collect, organize, and represent data, we can draw accurate conclusions and make fact-based decisions.
Topics in this chapter
1. Data collection, organization and representation process, and interpretation of data representation
What you will learn in this topic
- Generate statistical questions and collect relevant data.
- Classify data as categorical or numerical and construct frequency tables.
- Construct data representation for ungrouped data and justify the appropriateness of a data representation.
- Convert a data representation to other suitable data representations with justification.
- Interpret various data representations including making inferences or predictions.
- Discuss the importance of representing data ethically in order to avoid confusion.
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