javascript · beginner
Data Analysis Foundations
Learn to think like a data analyst: ask sharp questions, clean data, summarize it, and communicate findings.
~10hdata10 lessons
A beginner-friendly course covering the full analyst workflow: framing questions, cleaning messy data, descriptive statistics, grouping and aggregation, joining datasets, trends over time, correlation vs causation, spotting bias, choosing charts, and communicating findings -- all practiced with plain JavaScript over arrays of row objects.
Module 01
Thinking Like an Analyst
Thinking Like an Analyst module
- What Is a Dataset, and What Question Are You Asking?Level 1 · Complete beginner · Pass the quick check to continue12m
- Cleaning Messy DataFinish the lesson and pass the quick check in "What Is a Dataset, and What Question Are You Asking?" to unlock this lesson.13m
- Descriptive Statistics: Mean, Median, and SpreadFinish the lesson, Pass the quick check and pass the coding challenge in "Cleaning Messy Data" to unlock this lesson.14m
Module 02
Summarizing and Combining Data
Summarizing and Combining Data module
- Grouping and AggregationFinish the lesson, Pass the quick check and pass the coding challenge in "Descriptive Statistics: Mean, Median, and Spread" to unlock this lesson.14m
- Joining DatasetsFinish the lesson, Pass the quick check and pass the coding challenge in "Grouping and Aggregation" to unlock this lesson.14m
- Trends Over TimeFinish the lesson, Pass the quick check and pass the coding challenge in "Grouping and Aggregation" to unlock this lesson.13m
Module 03
Interpreting and Communicating
Interpreting and Communicating module
- Correlation vs CausationFinish the lesson, Pass the quick check and pass the coding challenge in "Trends Over Time" to unlock this lesson.12m
- Spotting Bias and Bad ChartsFinish the lesson, Pass the quick check and pass the coding challenge in "Descriptive Statistics: Mean, Median, and Spread" to unlock this lesson.13m
- Sales Data Analysis CapstoneComplete "Spotting Bias and Bad Charts" to unlock this project.~5h
- Choosing the Right ChartFinish the project "Sales Data Analysis Capstone" to unlock this lesson.13m
- Communicating Findings to StakeholdersFinish the project "Sales Data Analysis Capstone" to unlock this lesson.13m