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Chances are (pun intended) you've encountered probability by now, but what exactly is probability, and how do you calculate it? Probability is the likelihood of a specific event happening, like winning the lottery or rolling a 6 on a die.
Learn how to calculate probability for basic, mutually exclusive, independent and conditional events using formulas, diagrams and tables. See examples, worksheets and practice questions for GCSE Maths.
How to calculate probability. In order to calculate probability: Identify the sample space. Write out the basic probability. Solve the problem, using \textbf{AND} or \textbf{OR} rules as appropriate.
Learn how to calculate probability using a simple formula and examples of single and multiple events. Find out the difference between probability and odds, and the types of probability.
Probability of an event happening = Number of ways it can happen Total number of outcomes. Example: the chances of rolling a "4" with a die. Number of ways it can happen: 1 (there is only 1 face with a "4" on it) Total number of outcomes: 6 (there are 6 faces altogether) So the probability = 1 6.
Learn how to define and calculate probability for events in experiments with finite or infinite sample spaces. Explore theoretical, empirical, and subjective probabilities, and how to use complements and inequalities.
Learn how to calculate the probability of an event using the formula P (A) = n (A)/n (S), where n (A) is the number of favorable outcomes and n (S) is the total number of outcomes. Explore the types, terminology, and applications of probability with examples and interactive diagrams.
With the probability calculator, you can investigate the relationships of likelihood between two separate events. For example, if the chance of A happening is 50%, and the same for B, what are the chances of both happening, only one happening, at least one happening, or neither happening, and so on.
Learn how to calculate probability of two events, a series of events, and a normal distribution using this online tool. Input values, see results, and get explanations of probability concepts and formulas.
The formula for the probability of an event is given below and explained using solved example questions. Click to know the basic probability formula and get the list of all formulas related to maths probability here.