Data Analytics & AI | SQL Interviews | Power BI Resources
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๐Ÿ”“Explore the fascinating world of Data Analytics & Artificial Intelligence

๐Ÿ’ป Best AI tools, free resources, and expert advice to land your dream tech job.

Admin: @coderfun

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If youโ€™re just starting out in Data Analytics, itโ€™s super important to build the right habits early.

Hereโ€™s a simple plan for beginners to grow both technical and problem-solving skills together:

If You Just Started Learning Data Analytics, Focus on These 5 Baby Steps:

1. Donโ€™t Just Watch Tutorials โ€” Build Small Projects

After learning a new tool (like SQL or Excel), create mini-projects:

- Analyze your expenses

- Explore a free dataset (like Netflix movies, COVID data)


2. Ask Business-Like Questions Early

Whenever you see a dataset, practice asking:

- What problem could this data solve?

- Who would care about this insight?


3. Start a โ€˜Data Journalโ€™

Every day, note down:

- What you learned

- One business question you could answer with data (Helps you build real-world thinking!)


4. Practice the Basics 100x

Get very comfortable with:

- SELECT, WHERE, GROUP BY (SQL)

- Pivot tables and charts (Excel)

- Basic cleaning (Power Query / Python pandas)


_Mastering basics > learning 50 fancy functions._

5. Learn to Communicate Early

Explain your mini-projects like this:

- What was the business goal?

- What did you find?

- What should someone do based on it?

React with โค๏ธ for more

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
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๐—ง๐—ต๐—ฒ ๐Ÿฐ ๐—ฃ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€ ๐—ง๐—ต๐—ฎ๐˜ ๐—–๐—ฎ๐—ป ๐—Ÿ๐—ฎ๐—ป๐—ฑ ๐—ฌ๐—ผ๐˜‚ ๐—ฎ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—๐—ผ๐—ฏ (๐—˜๐˜ƒ๐—ฒ๐—ป ๐—ช๐—ถ๐˜๐—ต๐—ผ๐˜‚๐˜ ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ) ๐Ÿ’ผ

Recruiters donโ€™t want to see more certificatesโ€”they want proof you can solve real-world problems. Thatโ€™s where the right projects come in. Not toy datasets, but projects that demonstrate storytelling, problem-solving, and impact.

Here are 4 killer projects thatโ€™ll make your portfolio stand out ๐Ÿ‘‡

๐Ÿ”น 1. Exploratory Data Analysis (EDA) on Real-World Dataset

Pick a messy dataset from Kaggle or public sources. Show your thought process.

โœ… Clean data using Pandas
โœ… Visualize trends with Seaborn/Matplotlib
โœ… Share actionable insights with graphs and markdown

Bonus: Turn it into a Jupyter Notebook with detailed storytelling

๐Ÿ”น 2. Predictive Modeling with ML

Solve a real problem using machine learning. For example:

โœ… Predict customer churn using Logistic Regression
โœ… Predict housing prices with Random Forest or XGBoost
โœ… Use scikit-learn for training + evaluation

Bonus: Add SHAP or feature importance to explain predictions

๐Ÿ”น 3. SQL-Powered Business Dashboard

Use real sales or ecommerce data to build a dashboard.

โœ… Write complex SQL queries for KPIs
โœ… Visualize with Power BI or Tableau
โœ… Show trends: Revenue by Region, Product Performance, etc.

Bonus: Add filters & slicers to make it interactive

๐Ÿ”น 4. End-to-End Data Science Pipeline Project

Build a complete pipeline from scratch.

โœ… Collect data via web scraping (e.g., IMDb, LinkedIn Jobs)
โœ… Clean + Analyze + Model + Deploy
โœ… Deploy with Streamlit/Flask + GitHub + Render

Bonus: Add a blog post or LinkedIn write-up explaining your approach

๐ŸŽฏ One solid project > 10 certificates.

Make it visible. Make it valuable. Share it confidently.

I have curated the best interview resources to crack Data Science Interviews
๐Ÿ‘‡๐Ÿ‘‡
https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D

Like if you need similar content ๐Ÿ˜„๐Ÿ‘
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โ™พ๏ธ New Microsoft cloud updates support Indonesiaโ€™s long-term AI goals

โœ๏ธ Indonesiaโ€™s push into AI-led growth is gaining momentum as more local organisations look for ways to build their own applications, update their systems, and strengthen data oversight.

โœ๏ธ The country now has broader access to cloud and AI tools after Microsoft expanded the services available in the Indonesia Central cloud region, which first went live six months ago.

โœ๏ธ The expansion gives businesses, public bodies, and developers more options to run AI workloads inside the country instead of overseas data centres.
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Open Source Machine Learning - OpenDataScience

An open ML course balancing theory and practice: exploratory analysis, feature engineering, supervised/unsupervised models, ensembles, and time series. Kaggle-style assignments and Jupyter notebooks foster hands-on skills in heterogeneous data (text/images/geo).

๐Ÿ“š 30+ lessons with videos, articles, and Kaggle tasks
โฐ Duration: 6 months
๐Ÿƒโ€โ™‚๏ธ Self Paced
Created by ๐Ÿ‘จโ€๐Ÿซ: OpenDataScience (Yury Kashnitsky)
๐Ÿ”— Course Link
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3 Common Questions About Data and Analytics
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Don't forget to check these 10 SQL projects with corresponding datasets that you could use to practice your SQL skills:

1. Analysis of Sales Data:

(https://www.kaggle.com/kyanyoga/sample-sales-data)

2. HR Analytics:

(https://www.kaggle.com/pavansubhasht/ibm-hr-analytics-attrition-dataset)

3. Social Media Analytics:

(https://www.kaggle.com/datasets/ramjasmaurya/top-1000-social-media-channels)

4. Financial Data Analysis:

(https://www.kaggle.com/datasets/nitindatta/finance-data)

5. Healthcare Data Analysis:

(https://www.kaggle.com/cdc/mortality)

6. Customer Relationship Management:

(https://www.kaggle.com/pankajjsh06/ibm-watson-marketing-customer-value-data)

7. Web Analytics:

(https://www.kaggle.com/zynicide/wine-reviews)

8. E-commerce Analysis:

(https://www.kaggle.com/olistbr/brazilian-ecommerce)

9. Supply Chain Management:

(https://www.kaggle.com/datasets/harshsingh2209/supply-chain-analysis)

10. Inventory Management:

(https://www.kaggle.com/datasets?search=inventory+management)

Share this channel with your friends ๐Ÿค๐Ÿคฉ

Join for more -> https://whatsapp.com/channel/0029VaxbzNFCxoAmYgiGTL3Z

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
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The best fine-tuning guide you'll find on arXiv this year.

Covers:
> NLP basics
> PEFT/LoRA/QLoRA techniques
> Mixture of Experts
> Seven-stage fine-tuning pipeline

Source: https://arxiv.org/pdf/2408.13296v1
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๐Ÿ“ˆ Data Visualisation Cheatsheet: 13 Must-Know Chart Types โœ…

1๏ธโƒฃ Gantt Chart
Tracks project schedules over time.
๐Ÿ”น Advantage: Clarifies timelines & tasks
๐Ÿ”น Use case: Project management & planning

2๏ธโƒฃ Bubble Chart
Shows data with bubble size variations.
๐Ÿ”น Advantage: Displays 3 data dimensions
๐Ÿ”น Use case: Comparing social media engagement

3๏ธโƒฃ Scatter Plots
Plots data points on two axes.
๐Ÿ”น Advantage: Identifies correlations & clusters
๐Ÿ”น Use case: Analyzing variable relationships

4๏ธโƒฃ Histogram Chart
Visualizes data distribution in bins.
๐Ÿ”น Advantage: Easy to see frequency
๐Ÿ”น Use case: Understanding age distribution in surveys

5๏ธโƒฃ Bar Chart
Uses rectangular bars to visualize data.
๐Ÿ”น Advantage: Easy comparison across groups
๐Ÿ”น Use case: Comparing sales across regions

6๏ธโƒฃ Line Chart
Shows trends over time with lines.
๐Ÿ”น Advantage: Clear display of data changes
๐Ÿ”น Use case: Tracking stock market performance

7๏ธโƒฃ Pie Chart
Represents data in circular segments.
๐Ÿ”น Advantage: Simple proportion visualization
๐Ÿ”น Use case: Displaying market share distribution

8๏ธโƒฃ Maps
Geographic data representation on maps.
๐Ÿ”น Advantage: Recognizes spatial patterns
๐Ÿ”น Use case: Visualizing population density by area

9๏ธโƒฃ Bullet Charts
Measures performance against a target.
๐Ÿ”น Advantage: Compact alternative to gauges
๐Ÿ”น Use case: Tracking sales vs quotas

๐Ÿ”Ÿ Highlight Table
Colors tabular data based on values.
๐Ÿ”น Advantage: Quickly identifies highs & lows
๐Ÿ”น Use case: Heatmapping survey responses

1๏ธโƒฃ1๏ธโƒฃ Tree Maps
Hierarchical data with nested rectangles.
๐Ÿ”น Advantage: Efficient space usage
๐Ÿ”น Use case: Displaying file system usage

1๏ธโƒฃ2๏ธโƒฃ Box & Whisker Plot
Summarizes data distribution & outliers.
๐Ÿ”น Advantage: Concise data spread representation
๐Ÿ”น Use case: Comparing exam scores across classes

1๏ธโƒฃ3๏ธโƒฃ Waterfall Charts / Walks
Visualizes sequential cumulative effect.
๐Ÿ”น Advantage: Clarifies source of final value
๐Ÿ”น Use case: Understanding profit & loss components

๐Ÿ’ก Use the right chart to tell your data story clearly.

Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c

Tap โ™ฅ๏ธ for more!
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Data Analyst Roadmap ๐Ÿ“Š

๐Ÿ“‚ Python Basics
โˆŸ๐Ÿ“‚ Numpy & Pandas
โˆŸ๐Ÿ“‚ Data Cleaning
โˆŸ๐Ÿ“‚ Data Visualization (Matplotlib, Seaborn)
โˆŸ๐Ÿ“‚ SQL for Data Analysis
โˆŸ๐Ÿ“‚ Excel & Google Sheets
โˆŸ๐Ÿ“‚ Statistics for Analysis
โˆŸ๐Ÿ“‚ BI Tools (Power BI / Tableau)
โˆŸ๐Ÿ“‚ Real-World Projects
โˆŸโœ… Apply for Data Analyst Roles

โค๏ธ React for More!
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Data Analyst Roadmap

Like if it helps โค๏ธ
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๐Ÿ’ก Important Machine Learning Topics
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Important Topics to become a data scientist
[Advanced Level]
๐Ÿ‘‡๐Ÿ‘‡

1. Mathematics

Linear Algebra
Analytic Geometry
Matrix
Vector Calculus
Optimization
Regression
Dimensionality Reduction
Density Estimation
Classification

2. Probability

Introduction to Probability
1D Random Variable
The function of One Random Variable
Joint Probability Distribution
Discrete Distribution
Normal Distribution

3. Statistics

Introduction to Statistics
Data Description
Random Samples
Sampling Distribution
Parameter Estimation
Hypotheses Testing
Regression

4. Programming

Python:

Python Basics
List
Set
Tuples
Dictionary
Function
NumPy
Pandas
Matplotlib/Seaborn

R Programming:

R Basics
Vector
List
Data Frame
Matrix
Array
Function
dplyr
ggplot2
Tidyr
Shiny

DataBase:
SQL
MongoDB

Data Structures

Web scraping

Linux

Git

5. Machine Learning

How Model Works
Basic Data Exploration
First ML Model
Model Validation
Underfitting & Overfitting
Random Forest
Handling Missing Values
Handling Categorical Variables
Pipelines
Cross-Validation(R)
XGBoost(Python|R)
Data Leakage

6. Deep Learning

Artificial Neural Network
Convolutional Neural Network
Recurrent Neural Network
TensorFlow
Keras
PyTorch
A Single Neuron
Deep Neural Network
Stochastic Gradient Descent
Overfitting and Underfitting
Dropout Batch Normalization
Binary Classification

7. Feature Engineering

Baseline Model
Categorical Encodings
Feature Generation
Feature Selection

8. Natural Language Processing

Text Classification
Word Vectors

9. Data Visualization Tools

BI (Business Intelligence):
Tableau
Power BI
Qlik View
Qlik Sense

10. Deployment

Microsoft Azure
Heroku
Google Cloud Platform
Flask
Django

Join @datasciencefun to learning important data science and machine learning concepts

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
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๐Ÿ“ˆ Want to Excel at Data Analytics? Master These Essential Skills! โ˜‘๏ธ

Core Concepts:
โ€ข Statistics & Probability โ€“ Understand distributions, hypothesis testing
โ€ข Excel โ€“ Pivot tables, formulas, dashboards

Programming:
โ€ข Python โ€“ NumPy, Pandas, Matplotlib, Seaborn
โ€ข R โ€“ Data analysis & visualization
โ€ข SQL โ€“ Joins, filtering, aggregation

Data Cleaning & Wrangling:
โ€ข Handle missing values, duplicates
โ€ข Normalize and transform data

Visualization:
โ€ข Power BI, Tableau โ€“ Dashboards
โ€ข Plotly, Seaborn โ€“ Python visualizations
โ€ข Data Storytelling โ€“ Present insights clearly

Advanced Analytics:
โ€ข Regression, Classification, Clustering
โ€ข Time Series Forecasting
โ€ข A/B Testing & Hypothesis Testing

ETL & Automation:
โ€ข Web Scraping โ€“ BeautifulSoup, Scrapy
โ€ข APIs โ€“ Fetch and process real-world data
โ€ข Build ETL Pipelines

Tools & Deployment:
โ€ข Jupyter Notebook / Colab
โ€ข Git & GitHub
โ€ข Cloud Platforms โ€“ AWS, GCP, Azure
โ€ข Google BigQuery, Snowflake

Hope it helps :)
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