By CBT Nuggets Editorial · Last reviewed May 2026
Data analysts collect, clean, and interpret data so organizations can make better decisions. They translate raw numbers into the stories businesses act on — which marketing campaigns work, what shows to recommend, how to optimize delivery routes. In a data-driven world, analysts are the people who turn warehouse rows into decisions.
On a 10- to 30-person business unit, one capable data analyst is usually the difference between gut-driven decisions and decisions backed by the data the org already has.
Key responsibilities
Day-to-day responsibilities vary by industry and seniority, but the core work is consistent across employers.
- Data collection from internal databases and third-party sources
- Data cleaning — removing duplicates, fixing errors, handling outliers
- Statistical analysis in SQL, Python, or R
- Reporting and visualization in Tableau, Power BI, or Excel
- Collaborating with business teams to define data-driven strategies
- Validating accuracy through ongoing data-quality monitoring
Technical skills
The non-negotiable analyst skill set sits across spreadsheets (Excel pivot tables, INDEX/MATCH, logical functions), SQL (querying databases and extracting data), Python or R (statistical analysis, automating repetitive tasks), and data visualization tools (Tableau, Power BI, Excel charts). Familiarity with machine learning techniques or cloud platforms (AWS, GCP) can differentiate at hiring time.
Education and certifications
Most data analysts hold a bachelor's degree in data analysis, computer science, statistics, mathematics, or economics. Many employers no longer require the degree if the candidate ships strong portfolio work plus a certification or two.
- Microsoft Power BI Data Analyst (PL-300)
- Google Data Analytics Professional Certificate
- AWS Certified Cloud Practitioner (cloud-platform familiarity for analysts working with AWS data)
- IBM Data Science Professional Certificate
Career path
Most analysts start as junior analysts, focusing on basic data manipulation and reporting under senior analysts. From there, advancement leads to senior data analyst, data scientist, data analytics manager, or business intelligence director. Alternative paths run through data engineering, business analysis, and machine learning engineering.
Data Analyst vs. Data Scientist
Both roles work with data, but their focus differs. Data analysts are exploratory ("what can this data tell us?") — they uncover trends and present clear, actionable findings via dashboards and reports. Data scientists are experimental ("what can we use this data for in the future?") — they build predictive models, design ML algorithms, and combine disparate datasets for deeper insights. Analysts answer today's questions; scientists aim at tomorrow's.
Compensation
How much does a Data Analyst make?
| Experience | Average Salary |
|---|---|
| Entry-Level (0-2 years) | $50,000 - $70,000 |
| Mid-Level (3-5 years) | $70,000 - $90,000 |
| Senior-Level (5+ years) | $90,000 - $120,000+ |
Salary figures reflect 2024 market data.
Hiring a Data Analyst in the U.S. starts around $50,000/yr and runs significantly higher for senior roles. Training one internally on a CBT Nuggets Team plan is $749/seat/year — virtual labs, practice exams, and Trainerbot AI included.
For hiring managers
If you're hiring Data Analysts
If you're hiring a data analyst, the portfolio matters more than the certification stack. Strong candidates have shipped a dashboard the business actually uses or run an analysis that changed a decision. SQL fluency is non-negotiable; tool preference (Tableau vs Power BI) is fungible if the candidate can pick up either inside the first quarter.
Train Data Analysts on your team
Two paths into CBT Nuggets, depending on whether you're hiring for the role or growing into it yourself.
Hiring or training Data Analysts on your team?
See how CBT Nuggets builds Data Analyst bench depth with role-based training, admin reporting, and certification tracking — $749/seat/year on the Team plan.
For IT Directors & training managersStart training as a Data Analyst
Browse the courses, certifications, and hands-on labs that map to the Data Analyst path.
For individual learnersBuild the capability
Related CBT Nuggets training
Each link routes to training that maps to the skills on this career path.