What Is Data Science?
By Karthick Selvam · Published · Updated
Data science combines statistics, programming and domain knowledge to extract insights and build predictive models from data.
What data scientists do
Frame business questions, collect and clean data, explore patterns, build statistical or machine learning models and communicate results.
Core skills
Python or R, SQL, statistics, machine learning, data visualisation and storytelling.
How it differs from analytics
Analytics focuses on describing what happened; data science more often predicts and experiments.
Where it adds value
Forecasting, pricing, experimentation (A/B testing), personalisation and risk modelling.
Frequently asked questions
Is data science still in demand?
Demand has shifted towards people who combine modelling with engineering and business skills.
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- Advanced SQL for Data Professionals
- Power BI for Business Analytics
- Python for Data Engineering & Analysis
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