- Single Variable Calculus (Calculus I): http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx
- Advanced Single Variable calculus (Calculus II):http://tutorial.math.lamar.edu/Classes/CalcII/CalcII.aspx
- Multi-variable Calculus (Calculus III): http://tutorial.math.lamar.edu/Classes/CalcIII/CalcIII.aspx | UCSD lecture series: http://www.math.usm.edu/lambers/mat280/spr10/lectures.html
- Introduction to Mathematical Statistics:http://statweb.stanford.edu/~susan/courses/s200/
- Stanford lectures for Statistics 200: Introduction to Statistical Inference :https://stats200.stanford.edu/lectures.html
- Introduction to Statistical Inference
Statistical Inference by George Casella and Roger Berger : https://fsalamri.files.wordpress.com/2015/02/casella_berger_statistical_inference1.pdf [ Solutions to the Book: "Statistical Inference" by George Casella and Roger Berger]- http://exampleproblems.com/Solutions-Casella-Berger.pdf
Basics of Modern Mathematical Statistics http://premolab.ru/c_files/c49/Ff7OxE07fQ.pdf |Mathematical statistics: Exercises and Solutions- http://library.aceondo.net/ebooks/Mathematics/Mathematical_Statistics-Exercises_and_Solutions.pdf
- Joe Watkins: http://math.arizona.edu/~jwatkins/