Addition Rule for Mutually Exclusive Events

Formula: P(A ∪ B) = P(A) + P(B) Condition: Events A and B are mutually exclusive (i.e., A ∩ B = ). Explanation: If two events cannot occur simultaneously (mutu…

Syllabus path: Probability and Statistics › Classical Probability and Probability Calculation

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CSCA Mathematics Formula Reference

Formula and explanation

Formula: P(A ∪ B) = P(A) + P(B) Condition: Events A and B are mutually exclusive (i.e., A ∩ B = ). Explanation: If two events cannot occur simultaneously (mutually exclusive), the probability that at least one of them occurs is the sum of their individual probabilities.

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Classical Probability and Probability Calculation

Classical Probability and Probability Calculation Core Concepts The Classical Probability Model is the most fundamental model in probability theory. It strictly applies to random experiments satisfying two conditions: 1. Finiteness: The total number of possible outcomes (i.e., sa…

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