Tree Diagrams (AQA GCSE Maths): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main purpose of tree diagrams in probability?
What is the main purpose of tree diagrams in probability?
To calculate probabilities for combinations of events
At any branch point, what must the probabilities on branches add up to?
At any branch point, what must the probabilities on branches add up to?
1
How do you calculate the probability of a specific sequence of outcomes in a tree diagram?
How do you calculate the probability of a specific sequence of outcomes in a tree diagram?
Multiply along the branches
What should all end probabilities in a tree diagram add up to?
What should all end probabilities in a tree diagram add up to?
1
How do you answer questions asking for probability of several different outcomes?
How do you answer questions asking for probability of several different outcomes?
Add the relevant end probabilities
When items are replaced between selections, what happens to the probabilities?
When items are replaced between selections, what happens to the probabilities?
They remain the same each time
A box has 5 red and 3 green discs. With replacement, what is (both same colour)?
A box has 5 red and 3 green discs. With replacement, what is (both same colour)?
What is the best strategy for solving 'at least' probability questions?
What is the best strategy for solving 'at least' probability questions?
Calculate 1 minus 'less than'
Rolling 3 dice, (no sixes) = . What is (at least one six)?
Rolling 3 dice, (no sixes) = . What is (at least one six)?
When constructing a tree diagram, what must you check at each branching point?
When constructing a tree diagram, what must you check at each branching point?
Probabilities add up to 1