Data Science Tutorial Last Updated : 09 Sep, 2025 Suggest changes Share Like Article Like Report Data Science is a field that combines statistics, machine learning and data visualization to extract meaningful insights from vast amounts of raw data and make informed decisions, helping businesses and industries to optimize their operations and predict future trends.This Data Science tutorial offers a comprehensive guide to all major concepts and techniques used in data science with real-world projects.Do you wish to learn Data Science in scheduled manner ? Try our ongoing free course Data Science Skillup with weekly topic coverage, notes, daily quizzes and coding problems.Tools for Data Science To gain expertise in data science, you need to have a strong foundation in the following languages: Python for Data Science R for Data Science SQL for Data Science Mathematics for Data ScienceA solid understanding of mathematical concepts like statistics, linear algebra and calculus is important for building data science models.Mathematics for Data Science Statistics for Data Science Linear Algebra for Data Science Calculus for Data Science Data PreprocessingData preprocessing involves cleaning and transforming raw data into a usable format for accurate and reliable analysis.What is Data Preprocessing? What is Data Cleaning? Handling Missing Data Handling outliers Feature Selection Feature Engineering Splitting Data into Training and Testing Sets Data AnalysisData analysis is the process of inspecting data to discover meaningful insights and trends to make informed decision.What is Data Analysis?Data Analysis Process What is Exploratory Data Analysis?Identifying correlations between featuresStatistical AnalysisData Visualization Data visualization uses graphical representations such as charts and graphs to understand and interpret complex data.What is Data Visualization?Visualization with MatplotlibVisualization using Seaborn Visualization using PlotlyPowerBITableauMachine LearningMachine learning focuses on developing algorithms that helps computers to learn from data and make predictions or decisions without explicit programming.Machine Learning TutorialDeep Learning TutorialYou are now ready to explore real-world projects. For detailed guidance and project ideas refer to below article: Data Science Projects [With Source code]Careers in Data Science Data Science has been considered one of the most desirable jobs in IT field today. Growth opportunities in data science jobs are comparatively high than in any other job. Some of the most notable jobs in data science are:- Data Scientist Data Architect Data Administrator Data Analyst Business Analyst A abhishek1 Follow Explore Introduction to Machine LearningWhat is Data Science?8 min readTop 25 Python Libraries for Data Science in 202510 min readDifference between Structured, Semi-structured and Unstructured data2 min readTypes of Machine Learning13 min readWhat's Data Science Pipeline?3 min readApplications of Data Science6 min readPython for Machine LearningData Science with Python Tutorial2 min readPandas Tutorial6 min readNumPy Tutorial - Python Library3 min readData Preprocessing in Python4 min readEDA - Exploratory Data Analysis in Python6 min readIntroduction to StatisticsStatistics For Data Science11 min readDescriptive Statistic5 min readWhat is Inferential Statistics?7 min readBayes' Theorem13 min readProbability Data Distributions in Data Science8 min readParametric Methods in Statistics6 min readHypothesis Testing9 min readANOVA for Data Science and Data Analytics9 min readBayesian Statistics & Probability6 min readFeature EngineeringWhat is Feature Engineering?5 min readIntroduction to Dimensionality Reduction4 min readFeature Selection Techniques in Machine Learning6 min readFeature Engineering: Scaling, Normalization and Standardization5 min readPrincipal Component Analysis(PCA)7 min readModel Evaluation and TuningEvaluation Metrics in Machine Learning9 min readRegularization in Machine Learning5 min readCross Validation in Machine Learning5 min readHyperparameter Tuning7 min readML | Underfitting and Overfitting5 min readBias and Variance in Machine Learning10 min readData Science PracticeData Science Interview Questions and Answers15+ min readData Science Coding Interview Questions15 min readTop 65+ Data Science Projects with Source Code 6 min read Article Tags : Data Science AI-ML-DS Like