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This post is for beginners who decided to learn Data Science. I want to tell you that becoming a data scientist is a journey (6 months - 1 year at least) and not a 1 month thing where u do some courses and you are a data scientist. There are different fields in Data Science that you have to first get familiar and strong in basics as well as do hands-on to get the abilities that are required to function in a full time job opportunity. Then further delve into advanced implementations.

There are plenty of roadmaps and online content both paid and free that you can follow. In a nutshell. A few essential things that will be necessary and in no particular order that will at least get your data science journey started are below:

Basic Statistics, Linear Algebra, calculus, probability
Programming language (R or Python) - Preferably Python if you rather want to later on move into a developer role instead of sticking to data science.
Machine Learning - All of the above will be used here to implement machine learning concepts.
Data Visualisation - again it could be simple excel or via r/python libraries or tools like Tableau,PowerBI etc.

This can be overwhelming but again its just an indication of what lies ahead. So most important thing is to just START instead of just contemplating the best way to go about this. Since lot of things can be learnt independently as well in no particular order.

You can use the below Sources to prepare your own roadmap:
@free4unow_backup - some free courses from here
@datasciencefun - check & search in this channel with #freecourses

Data Science - https://365datascience.pxf.io/q4m66g
Python - https://bit.ly/45rlWZE
Kaggle - https://www.kaggle.com/learn

𝟱 𝗥𝗲𝗮𝗹-𝗪𝗼𝗿𝗹𝗱 𝗧𝗲𝗰𝗵 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝘁𝗼 𝗕𝘂𝗶𝗹𝗱 𝗬𝗼𝘂𝗿 𝗥𝗲𝘀𝘂𝗺𝗲 – 𝗪𝗶𝘁𝗵 𝗙𝘂𝗹𝗹 𝗧𝘂𝘁𝗼𝗿𝗶𝗮𝗹𝘀!😍

Are you ready to build real-world tech projects that don’t just look good on your resume, but actually teach you practical, job-ready skills?🧑‍💻📌

Here’s a curated list of 5 high-value development tutorials — covering everything from full-stack development and real-time chat apps to AI form builders and reinforcement learning✨️💻

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/3UtCSLO

They’re real, portfolio-worthy projects you can start today✅️

𝟯 𝗙𝗿𝗲𝗲 𝗦𝗤𝗟 𝗬𝗼𝘂𝗧𝘂𝗯𝗲 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁𝘀 𝗧𝗵𝗮𝘁 𝗪𝗶𝗹𝗹 𝗠𝗮𝗸𝗲 𝗬𝗼𝘂 𝗮 𝗤𝘂𝗲𝗿𝘆 𝗣𝗿𝗼 𝗶𝗻 𝟮𝟬𝟮𝟱😍

Still stuck Googling “What is SQL?” every time you start a new project?💵

You’re not alone. Many beginners bounce between tutorials without ever feeling confident writing SQL queries on their own.👨‍💻✨️

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/4f1F6LU

Let’s dive into the ones that are actually worth your time✅️

Top 10 Data Science Concepts You Should Know 🧠

1. Data Cleaning: Garbage In, Garbage Out. You can't build great models on messy data. Learn to spot and fix errors before you start. Seriously, this is the most important step.

2. EDA: Your Data's Secret Diary. Before you build anything, EXPLORE! Understand your data's quirks, distributions, and relationships. Visualizations are your best friend here.

3. Feature Engineering: Turning Data into Gold. Raw data is often useless. Feature engineering is how you transform it into something your models can actually learn from. Think about what the data represents.

4. Machine Learning: The Right Tool for the Job. Don't just throw algorithms at problems. Understand why you're using linear regression vs. a random forest.

5. Model Validation: Are You Lying to Yourself? Too many people build models that look great on paper but fail in the real world. Rigorous validation is essential.

6. Feature Selection: Less Can Be More. Get rid of the noise! Focusing on the most important features improves performance and interpretability.

7. Dimensionality Reduction: Simplify, Simplify, Simplify. High-dimensional data can be a nightmare. Learn techniques to reduce complexity without losing valuable information.

8. Model Optimization: Squeeze Every Last Drop. Fine-tuning your model parameters can make a huge difference. But be careful not to overfit!

9. Data Visualization: Tell a Story People Understand. Don't just dump charts on a page. Craft a narrative that highlights key insights.

10. Big Data: When Things Get Serious. If you're dealing with massive datasets, you'll need specialized tools like Hadoop and Spark. But don't start here! Master the fundamentals first.

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

Credits: https://news.1rj.ru/str/datasciencefun

Like if you need similar content 😄👍

Hope this helps you 😊

🎓𝟱 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗧𝗼 𝗕𝗼𝗼𝘀𝘁 𝗬𝗼𝘂𝗿 𝗧𝗲𝗰𝗵 𝗖𝗮𝗿𝗲𝗲𝗿! 🚀

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30-days learning plan to cover data science fundamental algorithms, important concepts, and practical applications 👇👇

### Week 1: Introduction and Basics

Day 1: Introduction to Data Science
- Overview of data science, its importance, and key concepts.

Day 2: Python Basics for Data Science
- Python syntax, variables, data types, and basic operations.

Day 3: Data Structures in Python
- Lists, dictionaries, sets, and tuples.

Day 4: Data Manipulation with Pandas
- Introduction to Pandas, Series, DataFrame, basic operations.

Day 5: Data Visualization with Matplotlib and Seaborn
- Creating basic plots (line, bar, scatter), customizing plots.

Day 6: Introduction to Numpy
- Arrays, array operations, mathematical functions.

Day 7: Data Cleaning and Preprocessing
- Handling missing values, data normalization, and scaling.

### Week 2: Exploratory Data Analysis and Statistical Foundations

Day 8: Exploratory Data Analysis (EDA)
- Techniques for summarizing and visualizing data.

Day 9: Probability and Statistics Basics
- Denoscriptive statistics, probability distributions, and hypothesis testing.

Day 10: Introduction to SQL for Data Science
- Basic SQL commands for data retrieval and manipulation.

Day 11: Linear Regression
- Concept, assumptions, implementation, and evaluation metrics (R-squared, RMSE).

Day 12: Logistic Regression
- Concept, implementation, and evaluation metrics (confusion matrix, ROC-AUC).

Day 13: Regularization Techniques
- Lasso and Ridge regression, preventing overfitting.

Day 14: Model Evaluation and Validation
- Cross-validation, bias-variance tradeoff, train-test split.

### Week 3: Supervised Learning

Day 15: Decision Trees
- Concept, implementation, advantages, and disadvantages.

Day 16: Random Forest
- Ensemble learning, bagging, and random forest implementation.

Day 17: Gradient Boosting
- Boosting, Gradient Boosting Machines (GBM), and implementation.

Day 18: Support Vector Machines (SVM)
- Concept, kernel trick, implementation, and tuning.

Day 19: k-Nearest Neighbors (k-NN)
- Concept, distance metrics, implementation, and tuning.

Day 20: Naive Bayes
- Concept, assumptions, implementation, and applications.

Day 21: Model Tuning and Hyperparameter Optimization
- Grid search, random search, and Bayesian optimization.

### Week 4: Unsupervised Learning and Advanced Topics

Day 22: Clustering with k-Means
- Concept, algorithm, implementation, and evaluation metrics (silhouette score).

Day 23: Hierarchical Clustering
- Agglomerative clustering, dendrograms, and implementation.

Day 24: Principal Component Analysis (PCA)
- Dimensionality reduction, variance explanation, and implementation.

Day 25: Association Rule Learning
- Apriori algorithm, market basket analysis, and implementation.

Day 26: Natural Language Processing (NLP) Basics
- Text preprocessing, tokenization, and basic NLP tasks.

Day 27: Time Series Analysis
- Time series decomposition, ARIMA model, and forecasting.

Day 28: Introduction to Deep Learning
- Neural networks, perceptron, backpropagation, and implementation.

Day 29: Convolutional Neural Networks (CNNs)
- Concept, architecture, and applications in image processing.

Day 30: Recurrent Neural Networks (RNNs)
- Concept, LSTM, GRU, and applications in sequential data.

Best Resources to learn Data Science 👇👇

kaggle.com/learn

t.me/datasciencefun

developers.google.com/machine-learning/crash-course

topmate.io/coding/914624

t.me/pythonspecialist

freecodecamp.org/learn/machine-learning-with-python/

Join @free4unow_backup for more free courses

Like for more ❤️

ENJOY LEARNING👍👍

𝟲 𝗙𝗿𝗲𝗲 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝘁𝗼 𝗟𝗲𝗮𝗿𝗻 𝘁𝗵𝗲 𝗠𝗼𝘀𝘁 𝗜𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 𝗧𝗲𝗰𝗵 𝗦𝗸𝗶𝗹𝗹𝘀😍

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𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/4fbDejW

Each course is beginner-friendly, comes with certification, and helps you build your resume or switch careers✅️

7 Free Kaggle Micro-Courses for Data Science Beginners with Certification

Python

https://www.kaggle.com/learn/python

Pandas

https://www.kaggle.com/learn/pandas

Data visualization

https://www.kaggle.com/learn/data-visualization

Intro to sql

https://www.kaggle.com/learn/intro-to-sql

Advanced Sql

https://www.kaggle.com/learn/advanced-sql

Intro to ML

https://www.kaggle.com/learn/intro-to-machine-learning

Advanced ML

https://www.kaggle.com/learn/intermediate-machine-learning

🚀𝗧𝗼𝗽 𝟯 𝗙𝗿𝗲𝗲 𝗚𝗼𝗼𝗴𝗹𝗲-𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗣𝘆𝘁𝗵𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝟮𝟬𝟮𝟱😍

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https://pdlink.in/42okGqG

✅ Future You Will Thank You!

▎Essential Data Science Concepts Everyone Should Know:

1. Data Types and Structures:

• Categorical: Nominal (unordered, e.g., colors) and Ordinal (ordered, e.g., education levels)

• Numerical: Discrete (countable, e.g., number of children) and Continuous (measurable, e.g., height)

• Data Structures: Arrays, Lists, Dictionaries, DataFrames (for organizing and manipulating data)

2. Denoscriptive Statistics:

• Measures of Central Tendency: Mean, Median, Mode (describing the typical value)

• Measures of Dispersion: Variance, Standard Deviation, Range (describing the spread of data)

• Visualizations: Histograms, Boxplots, Scatterplots (for understanding data distribution)

3. Probability and Statistics:

• Probability Distributions: Normal, Binomial, Poisson (modeling data patterns)

• Hypothesis Testing: Formulating and testing claims about data (e.g., A/B testing)

• Confidence Intervals: Estimating the range of plausible values for a population parameter

4. Machine Learning:

• Supervised Learning: Regression (predicting continuous values) and Classification (predicting categories)

• Unsupervised Learning: Clustering (grouping similar data points) and Dimensionality Reduction (simplifying data)

• Model Evaluation: Accuracy, Precision, Recall, F1-score (assessing model performance)

5. Data Cleaning and Preprocessing:

• Missing Value Handling: Imputation, Deletion (dealing with incomplete data)

• Outlier Detection and Removal: Identifying and addressing extreme values

• Feature Engineering: Creating new features from existing ones (e.g., combining variables)

6. Data Visualization:

• Types of Charts: Bar charts, Line charts, Pie charts, Heatmaps (for communicating insights visually)

• Principles of Effective Visualization: Clarity, Accuracy, Aesthetics (for conveying information effectively)

7. Ethical Considerations in Data Science:

• Data Privacy and Security: Protecting sensitive information

• Bias and Fairness: Ensuring algorithms are unbiased and fair

8. Programming Languages and Tools:

• Python: Popular for data science with libraries like NumPy, Pandas, Scikit-learn

• R: Statistical programming language with strong visualization capabilities

• SQL: For querying and manipulating data in databases

9. Big Data and Cloud Computing:

• Hadoop and Spark: Frameworks for processing massive datasets

• Cloud Platforms: AWS, Azure, Google Cloud (for storing and analyzing data)

10. Domain Expertise:

• Understanding the Data: Knowing the context and meaning of data is crucial for effective analysis

• Problem Framing: Defining the right questions and objectives for data-driven decision making

Bonus:

• Data Storytelling: Communicating insights and findings in a clear and engaging manner

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

ENJOY LEARNING 👍👍

𝗙𝗥𝗘𝗘 𝗧𝗔𝗧𝗔 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝗻𝘀𝗵𝗶𝗽 𝗳𝗼𝗿 𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿𝘀 (𝗪𝗶𝘁𝗵 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲)😍

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𝐋𝐢𝐧𝐤👇:-

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Data Science Learning Plan

Step 1: Mathematics for Data Science (Statistics, Probability, Linear Algebra)

Step 2: Python for Data Science (Basics and Libraries)

Step 3: Data Manipulation and Analysis (Pandas, NumPy)

Step 4: Data Visualization (Matplotlib, Seaborn, Plotly)

Step 5: Databases and SQL for Data Retrieval

Step 6: Introduction to Machine Learning (Supervised and Unsupervised Learning)

Step 7: Data Cleaning and Preprocessing

Step 8: Feature Engineering and Selection

Step 9: Model Evaluation and Tuning

Step 10: Deep Learning (Neural Networks, TensorFlow, Keras)

Step 11: Working with Big Data (Hadoop, Spark)

Step 12: Building Data Science Projects and Portfolio

𝟳 𝗠𝘂𝘀𝘁-𝗞𝗻𝗼𝘄 𝗦𝗤𝗟 𝗖𝗼𝗻𝗰𝗲𝗽𝘁𝘀 𝗘𝘃𝗲𝗿𝘆 𝗔𝘀𝗽𝗶𝗿𝗶𝗻𝗴 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝘁 𝗦𝗵𝗼𝘂𝗹𝗱 𝗠𝗮𝘀𝘁𝗲𝗿😍

If you’re serious about becoming a data analyst, there’s no skipping SQL. It’s not just another technical skill — it’s the core language for data analytics.📊

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/44S3Xi5

This guide covers 7 key SQL concepts that every beginner must learn✅️

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𝗔𝗰𝗲 𝗬𝗼𝘂𝗿 𝗦𝗤𝗟 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝘄𝗶𝘁𝗵 𝗧𝗵𝗲𝘀𝗲 𝟯𝟬 𝗠𝗼𝘀𝘁-𝗔𝘀𝗸𝗲𝗱 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀! 😍

🤦🏻‍♀️Struggling with SQL interviews? Not anymore!📍

SQL interviews can be challenging, but preparation is the key to success. Whether you’re aiming for a data analytics role or just brushing up, this resource has got your back!🎊

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/4olhd6z

Let’s crack that interview together!✅️

7 Phases of Database Design