1. What is the primary purpose of data analysis in handling complex data tables?
2. Who proposed the definition of data analysis as an ensemble of techniques to discover the structure of complex, multi-dimensional data tables and translate them into a simpler, summarized form?
3. Which technique would you apply in practice to explore the main structure of a large, multi-variable dataset and reduce its complexity for visualization?
Data analysis — definition?
Techniques to discover and simplify data structure.
Exploratory vs Inferential — role?
Describe data vs interpret for populations.
Multidimensional Data Analysis — purpose?
Uncover relationships in multiple variables.
Descriptive vs Explanatory — methods?
Summarize data vs reveal variable relationships.
Primary vs Secondary Data — difference?
Collected firsthand vs pre-existing.
Univariate Data Analysis — focus?
Single variable characterization.
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