Probability (A U B) Calculator
Publish date: 2024-08-03
Probability (A U B) Calculator 
Enter 3 out of 4 below:
Calculate P(A U B). The formula is denoted below:P(A U B) = P(A) + P(B) - P(A ∩ B)P(A U B) = Probability of A Union B
P(A) = Probability of A
P(B) = Probability of B
P(A ∩ B) = Proability of what A and B have in common (Intersection) P(A U B) = 0.2 + 0.08 - 0.03
P(A U B) = 0.28 - 0.03
P(A U B) = 0.25
P(A U B) = 0.25
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What is the Answer?
P(A U B) = 0.25
How does the Probability (A U B) Calculator work?
Free Probability (A U B) Calculator - Given a 2 event sample space A and B, this calculates the probability of the following events:
P(A U B)
P(A)
P(B)
P(A ∩ B)
This calculator has 4 inputs.
What 2 formulas are used for the Probability (A U B) Calculator?
P(A U B) = P(A) + P(B) - P(A ∩ B)For more math formulas, check out our Formula Dossier
What 5 concepts are covered in the Probability (A U B) Calculator?
intersectionthe set containing all elements of A that also belong to B or equivalently, all elements of B that also belong to A.A ∩ Bprobabilitythe likelihood of an event happening. This value is always between 0 and 1.
P(Event Happening) = Number of Ways the Even Can Happen / Total Number of Outcomesprobability (a u b)sample space the set of all possible outcomes or results of that experiment.unionCombine the elements of two or more sets
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