Here are some useful links and resources to learning Statistical Inference

• Statistical Inference -Coursera Data Science series.
• An Introduction to Statistical Learning with Applications in R
• DSO 530: Applied Modern Statistical Learning Techniques
• The Elements of Statistical Learning
• Wikibook of Statistics
• Introduction to Statistical Thought
• Advanced Data Analysis from an Elementary Point of View
• simpleR – Using R for Introductory Statistics
• Forecasting: Principles and Practice

*check the sites for any appropriate rules around downloading of course.