What this quiz covers

Grade 9 Probability Quiz 3 draws its questions at random from 36 questions across these topics:

• Theoretical probability
• A pack of cards
• Relative frequency
• Expected number
• Two-way tables
• Tree diagrams
• Three tosses
• Unequal branches
• Mixed practice

Example questions

A sample of the questions you will practise in this quiz. Work them out yourself - the full solution appears after you answer each one.

1. A bag holds 3 red, 4 blue and 7 black pens. Find \(P(\text{red})\).
2. A bag holds 3 red, 4 blue and 7 black pens. Find \(P(\text{black})\).
3. A die is rolled once. Find \(P(\text{a natural number})\).
4. A die is rolled once. Find \(P(\text{a number greater than } 6)\).
5. Which value can NOT be a probability?