Multistage Events and Conditional Probability (HSC SSCE Mathematics Advanced): Quizzes

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Multistage Events and Conditional Probability
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What are multistage events?

Experiments with 2+ simple experiments

How do you find probability of a path in a tree diagram?

Multiply probabilities along the path

What must branch probabilities leaving a single point sum to?

11

What is PP(at least one head) when flipping a coin twice?

34\frac{3}{4}

What happens to probabilities when drawing without replacement?

They change after each draw

What does P(AB)P(A|B) mean?

Probability of AA given BB occurred

What is the conditional probability formula using counts?

P(AB)=ABBP(A|B) = \frac{|A \cap B|}{|B|}

When are arrays particularly useful for multistage events?

For two events with manageable outcomes

What is PP(King|Heart) from a standard 52-card deck?

113\frac{1}{13}

What do two-way tables organize in conditional probability?

Data categorized by two criteria

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