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Jan 5, 2021 · Given two events, A and B, to “find the probability of A or B” means to find the probability that either event A or event B occurs. We typically write this probability in one of two ways: P (A or B) – Written form. P (A∪B) – Notation form. The way we calculate this probability depends on whether or not events A and B are mutually exclusive or not.
Aug 26, 2021 · When “A or B” are both singular nouns connected by “or,” you’ll need a singular verb. In contrast, when the subject of your sentence contains two nouns connected by “and,” you’ll need a plural verb.
The calculator provided computes the probability that an event A or B does not occur, the probability A and/or B occur when they are not mutually exclusive, the probability that both event A and B occur, and the probability that either event A or event B occurs, but not both.
However, if A and B are mutually exclusive, I would say "either A or B is". I think people often say "A or B" when they actually mean "either A or B". This is colloquially acceptable, but may be technically incorrect.
Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the probability of one event doesn’t affect the other, you have an independent event. All you do is multiply the probability of one by the probability of another.
Jan 17, 2023 · How to Find the Probability of A or B (With Examples) Given two events, A and B, to “find the probability of A or B” means to find the probability that either event A or event B occurs. We typically write this probability in one of two ways: P (A or B) – Written form. P (A∪B) – Notation form.
Nov 17, 2015 · Nov 17, 2015 at 0:34. Add a comment. The rule is simple: when using "A or B", the subsequent pronoun must match the plurality of B. Conversely, A similar rule regarding the subject of a sentence is that when presented with "A or/nor B", the subsequent verb matches the plurality of B. edited. answered. Add a comment.
Nov 21, 2023 · What is the Probability of A or B? How to Find Probability: Single Outcome. How to Find Probability: Either/Or Probability. Practice Examples. Lesson Summary. FAQs. Activities. How do you...
Determine if two events are mutually exclusive and/or independent. Apply the "Or" rule to calculate the probability that either of two events occurs. Apply the "And" rule to calculate the probability that both of two events occurs. Many probabilities in real life involve more than one event.
The probability that Events A or B occur is the probability of the union of A and B. The probability of the union of Events A and B is denoted by P(A ∪ B) . If the occurrence of Event A changes the probability of Event B, then Events A and B are dependent.
