How to do data analytics?

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Here's a step-by-step tutorial on how to do data analytics, even if you're a starter:

✅ Step-by-Step: How to Do Data Analytics
1. Define the Problem or Goal
Ask:

What decision do I want to make?

What do I want to know or optimize?

Example: Why are product sales decreasing in Q2?
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2. Get the Data
Get data from sources such as:

Spreadsheets (Excel, Google Sheets)

Databases (SQL, MongoDB)

APIs, Web scraping

Business tools (CRM, Google Analytics)

Example: Download customer feedback and monthly sales data.

3. Clean and Prepare the Data
Correct issues such as:

Missing values

Unstandardized formats

Duplicate records

Tools: Excel, Python (Pandas), R, Power Query

Example: Remove blank cells and standardize date formats.

Get to know the data by examining:

Summary statistics (mode, median, mean)

Trends and distributions

Correlations and outliers

Tools: Excel, Python (Matplotlib, Seaborn), Power BI, Tableau



5. Analyze the Data
Use:

Descriptive analytics to know what occurred

Diagnostic analytics to discover why

Predictive analytics to predict

Prescriptive analytics to suggest actions
Techniques: A/B testing, regression, clustering, trend analysis
Tools: Excel, Python, R, SQL, SPSS, SAS

Example: Perform a regression model to determine what drives sales.

6. Visualize the Results
Develop charts, dashboards, or reports to convey findings elegantly.

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Example: A bar chart comparing quarterly sales by region.

7. Interpret & Act
What story does the data tell?

What action should be taken?

How will results be measured?

Example: Recommend increasing ad spend in regions with high potential.

Tools You Can Use
Excel/Google Sheets – good for beginners
SQL – for querying databases

Python or R – for advanced analysis

Power BI / Tableau – for dashboards and visuals

Tip:
Start small! Practice with simple data (e.g., personal budget, survey responses) before tackling business or large data projects.

Would you like a beginner's roadmap, cheat sheet, or tutorial to get hands-on with your first project?

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