Data Science Tutorials
Develop your data science skills with tutorials in our blog. We cover everything from intricate data visualizations in Tableau to version control features in Git.
Discover categories
Training 2 or more people?Try DataCamp for Business
RANDARRAY() Function in Excel: Generate Random Numbers in Your WorkBook
Generate random numbers in Excel easily with the RANDARRAY() function. Learn how to use RANDARRAY() to create dynamic arrays of random numbers for your spreadsheets.
Josef Waples
August 8, 2025
MODE() Function in Excel: Find the Most Frequent Number
Find the most common value in your data. Learn to use MODE() function in Excel for quick statistical insights. Master basic and advanced use cases with clear examples.
Josef Waples
August 8, 2025
NORM.DIST() Function in Excel: Calculate Probabilities and Curve Heights
Learn how to calculate cumulative probabilities and probability density using NORM.DIST in Excel. Understand its syntax, key arguments, and real-world examples.
Josef Waples
August 8, 2025
Mean Absolute Error Explained: Measuring Model Accuracy
Learn how to evaluate your model’s accuracy using mean absolute error. Understand when and why to use MAE to make your data-driven decisions more reliable.
Josef Waples
August 8, 2025
Snowflake Dynamic Tables Explained: Modern Data Pipelines
Learn about how Snowflake Dynamic Tables can simplify your complicated and time-sensitive ETL processes by allowing Snowflake to manage refreshes.
Tim Lu
August 7, 2025
SQL Primary Key: A Comprehensive Technical Tutorial
Understand what an SQL primary key is and its function in database relationships and query performance in this technical tutorial.
Austin Chia
August 7, 2025
How to Run Qwen3-Coder Locally
Learn easy but powerful ways you can use Qwen3-Coder locally.
Abid Ali Awan
August 7, 2025
Excel CORREL(): Analyze Relationships Between Variables in Excel
Analyze the strength and direction of relationships between variables using built-in Excel tools.
Josef Waples
August 7, 2025
Simpson's Paradox: Avoid Being Misled by the Data
Break down misleading trends to uncover what’s really going on in your data. Learn to identify confounders, segment your analysis, and avoid false conclusions caused by Simpson’s Paradox.
Josef Waples
August 7, 2025
Cloud Application Development: A Complete Guide to Architectures, Tools, and Best Practices
Explore the core principles, architectures, and tools behind modern cloud application development. We cover microservices, serverless computing, DevOps integration, and security strategies for building scalable, resilient, and cloud-native applications.
Benito Martin
August 6, 2025
MongoDB Dot Notation Tutorial: Querying Nested Fields
Learn a few querying techniques for nested documents and arrays within MongoDB.
Nic Raboy
August 6, 2025
Difference Between SQL and PL/SQL: When to Use Each
Understand the key differences between SQL and PL/SQL, their ideal use cases, and practical tips for choosing the right tool for efficient database development.
Allan Ouko
August 6, 2025