Learndata
Data Analysis Foundations
Learn to think like a data analyst: ask sharp questions, clean data, summarize it, and communicate findings.
~10h10 lessonsbeginnerjavascript
0 of 10 lessons complete
About this course
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.
Syllabus
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
02
Summarizing and Combining Data
Summarizing and Combining Data module
- Grouping and AggregationUnlimitedFinish the lesson, Pass the quick check and pass the coding challenge in "Descriptive Statistics: Mean, Median, and Spread" to unlock this lesson.14m
- Joining DatasetsUnlimitedFinish the lesson, Pass the quick check and pass the coding challenge in "Grouping and Aggregation" to unlock this lesson.14m
- Trends Over TimeUnlimitedFinish the lesson, Pass the quick check and pass the coding challenge in "Grouping and Aggregation" to unlock this lesson.13m
03
Interpreting and Communicating
Interpreting and Communicating module
- Correlation vs CausationUnlimitedFinish the lesson, Pass the quick check and pass the coding challenge in "Trends Over Time" to unlock this lesson.12m
- Spotting Bias and Bad ChartsUnlimitedFinish 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 CapstoneUnlimitedComplete "Spotting Bias and Bad Charts" to unlock this project.~5h
- Choosing the Right ChartUnlimitedFinish the project "Sales Data Analysis Capstone" to unlock this lesson.13m
- Communicating Findings to StakeholdersUnlimitedFinish the project "Sales Data Analysis Capstone" to unlock this lesson.13m