Statistics & Probability Flashcards: Finding Conditional Probability In Models

Study Finding Conditional Probability In Models in Statistics & Probability with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Find $P(A\mid B)$ if $|A\cap B|=18$ and $|B|=60$ in an equally likely model.

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ANSWER

$0.30$ . Divide favorable count by total in $B$ : $\frac{18}{60}=0.30$ .

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What this deck covers

This deck focuses on Finding Conditional Probability In Models, giving you a quick way to review the definitions, rules, and examples that matter most for Statistics & Probability.

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 50Practice questions for this set

A class has 10 students. Each student is equally likely to be selected at random. The students are:

Soccer: Ana, Ben, Cam, Dee
Basketball: Eli, Fay, Gus
Neither: Hal, Ivy, Jay

Let event

A

be "the selected student plays soccer" and event

B

be "the selected student plays a sport (soccer or basketball)." Using the list above, what is

P(A\mid B)

? Give your answer as a simplified fraction.

Choose an answer

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