1.http://www.programminglogic.com/introduction-to-probability/

2.The Only Probability Cheatsheet You’ll Ever Need – William Chen

3.Introduction to Probability – Charles M. Grinstead, J. Laurie Snell

4.Introduction to Probability – Dimitri P. Bertsekas, John N. Tsitsiklis (MIT)

5.A Short Introduction to Probability – Dirk P. Kroese (University of Queensland)

6.Probability: Theory and Examples – Rick Durrett

7.Probability and Statistics Cookbook – Matthias Vallentin (UC Berkeley)

8.https://www.khanacademy.org/math/probability/

9.http://athenasc.com/probbook.html

10.https://people.cs.umass.edu/…/240F11…/intro_probability.pdf

11.https://www.probabilitycourse.com/

12.Introductory Probability and Statistical Applications by Paul L. Meyer

13.A Course in Probability Theory, Revised Edition, Second Edition by Kai Lai Chung

14.Probability Theory: The Logic of Science – E. T. Jaynes

15.First Look at Rigorous Probability Theory by Jeffrey S. Rosenthal