Questions: Probability
Pick a question type. Each time you get new numbers. Free ones are marked free.
Probability basics
- Probability from a bagWork out, 2 marks, free
- The probability something does not happenWork out, 1 mark, free
- A missing probability in a tableWork out, 2 marks, free
- Probabilities in terms of xWork out, 3 marks, free
- Expected number of timesWork out, 2 marks, free
- Words on the probability scaleChoose, 1 mark, free
- One outcome or anotherWork out, 2 marks, free
- Events on a fair diceWork out, 2 marks, free
- Change the bag to change the probabilityWork out, 3 marks, free
Relative frequency and listing outcomes
- Relative frequency from resultsWork out, 2 marks, free
- Use results to predictWork out, 3 marks, free
- Is it fair?Choose, 1 mark, free
- Two dice: the sample spaceWork out, 2 marks, free
- Two spinners: products and sumsWork out, 3 marks, free
- Three coinsWork out, 2 marks, free
- Counting choicesWork out, 2 marks, free
- The most reliable estimateChoose, 1 mark, free
Venn diagrams and two-way tables
- Probabilities from a Venn diagramWork out, 2 marks, Plus
- Complete a Venn diagram from totalsWork out, 5 marks, Plus
- Set notation in a Venn diagramWork out, 2 marks, Plus, Higher tier
- A Venn diagram with xSolve, 5 marks, Plus, Higher tier
- Complete a two-way tableWork out, 2 marks, Plus
- Probability from a two-way tableWork out, 2 marks, Plus
- Sets of numbersWork out, 3 marks, Plus, Higher tier
- What the symbols meanChoose, 1 mark, Plus, Higher tier
Tree diagrams
- Two independent eventsWork out, 2 marks, Plus
- A tree diagram for two independent trialsWork out, 6 marks, Plus
- Two picks with replacementWork out, 3 marks, Plus
- Two picks without replacementWork out, 3 marks, Plus, Higher tier
- At least oneWork out, 3 marks, Plus
- A tree where the second branch depends on the firstWork out, 3 marks, Plus, Higher tier
- Three trialsWork out, 3 marks, Plus, Higher tier
- Are two events independent?Choose, 2 marks, Plus, Higher tier
Conditional probability
- Given that: from a Venn diagramWork out, 2 marks, Plus, Higher tier
- Given that: from a two-way tableWork out, 2 marks, Plus, Higher tier
- Turning a tree roundWork out, 4 marks, Plus, Higher tier
- The second pick, given the firstWork out, 2 marks, Plus, Higher tier
- Using P(A and B) ÷ P(B)Work out, 2 marks, Plus, Higher tier
- How many were in the bag?Solve, 4 marks, Plus, Higher tier
- What "given" meansChoose, 1 mark, Plus, Higher tier
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