Probability is the study of chance or the likelihood of an event
happening. Directly or indirectly, probability plays a role in all
activities.
For example, we may say that it will probably
rain today because most of the days we have observed were rainy
days. However, in mathematics, we would require a more accurate
way of measuring probability.
Samples in Probability  Probability of an Event 
Theoretical Probability and Experimental Probability  Complementary Events 
Probability Problems  Probability and Area 
Geometric Probability  Coin or Dice Probability Using A Tree Diagram 
More Tree Diagrams  Probability Diagrams or Possibility Diagrams 
Mutually Exclusive Events ("Or" events)  Independent Events ("And" events) 
Dependent Events ("And" events without replacement)  Conditional Probability 
Probability Tree Diagrams  Probability Without Replacement (using probability tree diagrams) 
Factorial  Permutations P(n, n) 
Permutations P(n, r )  Combinations 
Probability with Statistics 

Random Variable  Probability Density Functions 
Binomial Distribution  Expected Value 
Poisson Distribution  Normal Distribution 
ZScore  Bayes' Theorem 
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.