Data Analytics Is Not Too Difficult to Begin Skills such as Excel, Google Sheets, or simple BI tools (e.g., Tableau, Power BI) are highly learnable. There are many free tutorials and courses available that make it easy for beginners. Instruction: If you're logical and like solving problems, you'll probably pick it up quickly. What Makes It Difficult Mathematics & Statistics Regression, probability, and hypothesis testing concepts can be tricky if you're new to them.