Decision tree courses can help you learn how to create, interpret, and optimize decision trees for data analysis, classification, and regression tasks. You can build skills in feature selection, model evaluation, and understanding overfitting versus underfitting. Many courses introduce tools like Python's scikit-learn, R's rpart, and various visualization software, that support implementing decision trees and analyzing their performance in real-world datasets.

University of Colorado Boulder
Skills you'll gain: Data-Driven Decision-Making, Descriptive Statistics, Data Literacy, Data Analysis, Plot (Graphics), Probability Distribution, Statistical Software, Statistics, Statistical Visualization, R (Software), Data Visualization, Statistical Analysis, Probability, R Programming, Probability & Statistics, Statistical Programming, Descriptive Analytics, Statistical Hypothesis Testing, Data Manipulation, Histogram
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Javascript and jQuery, jQuery, Responsive Web Design, Web Development, Version Control, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Hypertext Markup Language (HTML), HTML and CSS, Web Frameworks, GitHub, Web Applications, Javascript, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Network Architecture, Network Infrastructure, Browser Compatibility
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Artificial Intelligence, Agentic systems, Machine Learning Algorithms, Bayesian Network, Applied Machine Learning, Computational Logic, Machine Learning, Unsupervised Learning, Agentic Workflows, Bayesian Statistics, Artificial Neural Networks, Reinforcement Learning, Decision Intelligence, Markov Model, Algorithms, Programming Principles, Probability & Statistics
Mixed · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Generative AI, Microsoft Copilot, Generative Model Architectures, Generative Adversarial Networks (GANs), Natural Language Processing, Data Quality, Anomaly Detection, AI literacy, Data Storytelling, Responsible AI, Data Visualization, Data Ethics, Data-Driven Decision-Making, Data Presentation, Data Pipelines, Data Cleansing, Data Visualization Software, Data Preprocessing, Data Science, Critical Thinking
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Agentic systems, Game Theory, Decision Intelligence, Human Development, Behavioral Economics, Artificial Intelligence, Psychology, Simulations, Mathematical Modeling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cash Flows, Income Statement, Financial Analysis, Financial Accounting, Revenue Recognition, Generally Accepted Accounting Principles (GAAP)
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Critical Thinking and Problem Solving, Logical Reasoning, Analytical Skills, Deductive Reasoning, Critical Thinking, Problem Solving, Complex Problem Solving, Computational Logic, Applied Mathematics, Combinatorics, Geometry, Arithmetic
Beginner · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Strategic Decision-Making, Strategic Planning, Decision Making, Strategic Thinking, Strategic Leadership, Organizational Strategy, Corporate Strategy, Business Strategy, Plan Execution, Organizational Structure, Performance Management, Health Care Administration, Business Management, Strategic Partnership, Health Administration, Leadership, Organizational Development, Mergers & Acquisitions, Analysis, Competitive Analysis
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Visualization Software, Scientific Visualization, Interactive Data Visualization, Geospatial Information and Technology, Geospatial Mapping, Data Presentation, Color Theory, Graphic and Visual Design, Visual Design, Spatial Data Analysis, Tree Maps, Visualization (Computer Graphics), Data Storytelling, Statistical Visualization, Design Elements And Principles, Tableau Software, Plot (Graphics), Data Literacy, Computer Displays, Time Series Analysis and Forecasting
Intermediate · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Healthcare Ethics, Clinical Research Ethics, Electronic Medical Record, Medical Privacy, Business Ethics, Informed Consent, Medical Records, Ethical Standards And Conduct, Health Information Management, Health Care, Clinical Trials, Governance, Marketing Management, Law, Regulation, and Compliance, Decision Making, Analysis, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Lean Six Sigma, Process Mapping, Statistical Process Controls, Six Sigma Methodology, Process Flow Diagrams, Process Analysis, Lean Methodologies, Lean Manufacturing, Kaizen Methodology, Statistical Analysis, Quality Improvement, Statistical Methods, Quality Monitoring, Process Improvement, Process Capability, Process Improvement and Optimization, Quality Management, Continuous Quality Improvement (CQI), Project Management, Process Optimization
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Proposal Development, Proposal Writing, Technical Writing, Technical Communication, Business Writing, Stakeholder Analysis, Concision, Engineering Management, Persuasive Communication, Report Writing, Business Correspondence, Stakeholder Communications, Writing, Stakeholder Engagement, Business Communication, Communication, Communication Strategies
Build toward a degree
Beginner · Course · 1 - 4 Weeks