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ISEE Upper Level Quantitative Reasoning Flashcards: Multi Event Probability

Study Multi Event Probability in ISEE Upper Level Quantitative Reasoning with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

State the conditional probability formula for P(A∣B)P(A\mid B).

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ANSWER

P(A∣B)=P(A∩B)P(B)P(A\mid B)=\frac{P(A\cap B)}{P(B)}. Conditional probability is the joint probability divided by the probability of the conditioning event.

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ISEE Upper Level Quantitative Reasoning: Data Analysis and Probability

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What this deck covers

This deck focuses on Multi Event Probability, giving you a quick way to review the definitions, rules, and examples that matter most for ISEE Upper Level Quantitative Reasoning.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 16Practice questions for this set
A box contains 4 defective items and 16 non-defective items. Three items are selected at random without replacement. What is the probability that at least one item is defective?
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