Further Tree Diagrams (Edexcel A-Level Mathematics): Quizzes

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Further Tree Diagrams
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10 questions from this quiz

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How many discs are in the bag initially?

18

What is the probability of selecting a red disc on the first draw?

518\frac{5}{18}

Given a red disc is drawn first, what is P(Red second)?

417\frac{4}{17}

What is the probability of selecting two red discs?

10153\frac{10}{153}

What is the probability of at least one green disc being selected?

96153\frac{96}{153}

Given the first disc is blue, what is P(Green second)?

717\frac{7}{17}

Given the second disc is blue, what is P(Red first)?

517\frac{5}{17}

What does 'without replacement' mean in this context?

Disc not returned before second draw

After the first disc is drawn, how many discs remain for the second draw?

17

What is the conditional probability formula for P(A|B)?

P(A and B)P(B)\frac{P(A \text{ and } B)}{P(B)}

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